
The key moments that transformed the Eastern Roman capital of Constantinople into the modern-day city of Istanbul.
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Dan Snow
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Dan Snow
Hi everybody. Welcome to Dan Snow's History. There is no city on earth with as dramatic and suggestive a geographical setting than Istanbul. Under its various names, Byzantium, Constantinople, Istanbul, it has sat at the crossroads of this part of the world for thousands of years. Is there right slap bang on the only sea route in and out of the Black Sea. So it could not be a better place to tax those merchants. All that trade flowing through this essential artery. But it also sits at the border between Europe and Asia. It controls that narrow sliver of water between them, the huge East west highway that we've done so many podcasts on, the famous Silk Road that's carried people and religions and goods and ideas from China to Europe and Europe to China that passes through Constantinople North, South, East, West. And that's why History has happened here. This is where Achilles and the bronze clad Achaeans came to battle against the Trojans. This is where Xerxes crossed the Hellespont into Europe, flogging the water on the way by just because of its disobedience. It's very near here that the Goths humiliated the Romans, slaughtered an emperor Adrianople, leading eventually to the downfall of the the Western Roman Empire. It was the choke point stopping Islam surging into Central Europe during the medieval period. It's where the British faced off against the Russians in the 19th century. It's where the British and French in the 20th century went to decapitate the Ottoman Empire. It is one of the world's great cities. I'm never happier than when I'm in Istanbul. I sit on roof terraces and I drink beer and I think about conquerors and the tides of history. I get quite carried away. I'm not very good company. This podcast all about that city. You're going to be hearing about crusades and wars and revolutions, the rise and fall of civilizations. And here to take me on that sweeping journey, we've got the fantastic Jonathan Harris, professor of the history of Byzantium at Royal Holloway. And I want to mention, actually, this is the first of two episodes we're releasing on the history of Istanbul. If you want to hear about one of the most important events in world history, which we shall mention this podcast if you want to deep dive on it. The Fall of Constantinople in 1453. Make sure to tune back in for an episode that we have borrowed from the feed of our fantastic sibling podcast, gone Medieval. It's called the Fall of Constantinople. In the meantime, let's get into it. Enjoy.
Jonathan Harris
T minus 10 atomic bombs dropped on Hiroshima. God save the king. No black white unity till there is.
Dan Snow
First some black unity.
Jonathan Harris
Never to go to war with one another again. And liftoff. And the shuttle has cleared the tower.
Dan Snow
Jonathan, thank you very much for coming on the podcast.
Jonathan Harris
Great pleasure. Very glad to be here, Dan.
Dan Snow
Even as historians, we have to quickly tip our hat to the geographers amongst us. Why does that place matter? Even before something called Byzantium is constructed.
Jonathan Harris
There, Partly where it is and secondly what it is. I mean, where it is, it is literally where Europe ends and Asia begins. So it's on that kind of east west axis. But on the other hand, it's also on a north south axis because with the Black Sea above it and then the route down through the Sea of Marma and the Dardanelles and the Aegean to the Mediterranean is literally at a crossroads, effectively, which is going to mean it's receiving influences, whether commercial or artistic or military or whatever, from all directions. But also what it is, it's a triangle of land which effectively has one of the finest natural harbour in the world in the Golden Horn. Probably Sydney and New York maybe are perhaps rather better, but even so, it is a very fine natural harbour.
Dan Snow
When you describe it like that, sometimes I think, what took it so long to become an important hegemonic sort of settlement? What is the early history of people living in that place?
Jonathan Harris
Well, certainly the prehistoric Stone Age, they found evidence of that in the excavations at Istanbul. So I think really, human beings have been there really for a very, very long time. But there's an actual. I mean, we have to go back to about 700 BCE, when a group of Greek settlers from the town city of Megara, which is quite near Athens, travel up there and found a Greek settlement on the site, which is called Byzantion or Byzantium.
Dan Snow
And is it a very deliberate decision? Do they move there for its strategic and commercial importance?
Jonathan Harris
Well, this is where, of course, we encounter really this almost light motif of the history of Byzantium, Constantinople, is that history and myth are kind of inextricably linked. So we certainly know the city was founded, but only from people telling us. Hundreds of years later, so many hundreds of years after the city was founded, the story circulates that Megara is a bit crowded. So they're going to send people off to found a new city. But before they go, they go to the Delphic Oracle to ask for its advice. And it says, well, you know, found your city opposite the blind. Okay, well, the Delphicoacon is always a bit opaque, but off they go. They sail up the Dardanelles, across the Sea of Marmu, put in one evening at the city of Halsedon on the Bosphorus. They spend the night there, and then next morning they get up, rub their eyes, and then realize that the oracle was right. Because looking across the Bosphorus, they can see this fantastic site completely untaken. And the people of Megara must have been blind to actually go. You know, people of Halcyd must have been blind to go and put their city opposite this marvellous site. Now, who knows whether that has any grain of truth whatsoever in it, but it does ring true in a way, because the city of Halseden apparently was founded before Constantinople. If you've got a choice of sites, most people will go for Byzantium.
Dan Snow
Yeah, Constantinople, that is inexplicable does Byzantium thrive?
Jonathan Harris
It does because it takes advantage of the commercial opportunities for trade, of being on that site. Of course, the difficulty as well, of course is you're also in the path of empires that rise and fall. Come the 6th century, the Persians arrive on the scene and they do actually incorporate Byzantium into their empire. But then they go and the Athenians come along, the Byzantines sort of cozy up to them and then the Peloponnesian War, it's quite clear Sparta is going to win, so they quickly change sides and join the Spartans and then of course the Romans come along and so they capitulate to the Romans so they keep a kind of independence and they're quite rich from trade. So over the years they sort of manage to weather the storms.
Dan Snow
But it's interesting, isn't it, that so many of these stories, well, many things you've mentioned, the Hellespont, Byzantium, it's at the heart of it geographically if nothing else. And Xerxes crossing Hellespont for his invasion of Greece. I imagine the Byzantines would have been very much involved in that. And then the final, really one of the great, decisive final battle of the Peloponnesian War, Battle of Hygiepotomies, fought almost within a day's march of Byzantium in the straits, in the narrows there, the Dardanelles. So whether it's Troy or that battle or Xerxes, history is happening in this place.
Jonathan Harris
It's a place where things happen. Yes, you're absolutely right. You're in the path of things so you can't keep out of it altogether. But they do pretty well in just sort of making sure they're on the right side at the right time.
Dan Snow
So the Romans just absorb Byzantium and it becomes what, another provincial city?
Jonathan Harris
Well, it is really, but again it has its own self government. It's pretty much left alone until of course, at the end of the second century, pick the wrong side in the Roman civil war, unfortunately they go against Septimius Severus who's fighting various rivals to be emperor and they end up being besieged by him. He has a very tough job taking the place, but he does in the end and he punishes the city in various ways. He pulls down its fortifications and removes a lot of its privileges.
Dan Snow
That's called being on the wrong side of history there. You don't want to mess with Septimius Severus.
Jonathan Harris
You did not. No.
Dan Snow
So it's not clear at this point that Byzantium's about to become this. Well, this new Rome, this world city. What happens? How does it change?
Jonathan Harris
Very shortly after Septimius Sapphiras death, his son realises it's not a good idea to leave Byzantium undefended and has its war walls rebuilt. Strategic importance means that you can't sort of just ignore it. And then of course, come the early 4th century, when Roman emperors are spending most of their time on the frontiers, very little time at Rome because it's a much more dangerous situation with the Persians attacking in the east and various tribes on the Danube. Roman emperors are looking for some kind of forward base, somewhere where they can reside and be within easy reach of both the Eastern and Danube frontiers. So Byzantium actually is a very good place to be because you are between the two. And so the Emperor Constantine decides to found a new city there. Not necessarily a new capital at this stage, but somewhere which is a suitable imperial residence where he can pretty quickly get to the frontiers when necessary. So in the year 324, he founds a new city on the site of Byzantium and changes its name in his own honour. So he calls it the City of Constantine, Constantinople. That's when the name changes happens.
Dan Snow
And again, nothing too strange about this. Hadrian constantly refounded cities and gave them his name. Right, so this is not necessarily an epochal decision at the moment?
Jonathan Harris
Oh, absolutely not. We've had Hadrianopoulos or Adrianople, we've had Trajanopoulos. Oh, yes, this is all. So we've got Constantinopolis, effectively. So in itself, this isn't a groundbreaking moment, but it's going to lead to great things. And immediately, of course, now the myths start kicking in again, which are invented several hundred years later. But no, an angel comes down from heaven to guide Constantine because he doesn't know where to have the boundary of the city. So the angel comes down, says, follow me, and he and his courtiers follow the angel and eventually the angel says right here. Because Constantine is of course a Christian, he's the first Christian Roman Emperor. So it's seen as a seminal moment, really, in founding a Christian city. I don't think Constantine meant it quite like that, but that's how it was seen with hindsight.
Dan Snow
So it's so interesting, isn't it? You're absolutely right. And you look at a map, it's sort of equidistant from your Syrian frontier, your sort of beyond Damascus, beyond Antioch and then what is now Serbia, Romania, bits of Romania, Hungary. So this dangerous Danubian frontier, as well, so it does make perfect sense. Just as the power in the west was moving up into the sort of the Rhineland, so they could be within marching distance of the Channel, but also the RH frontier.
Jonathan Harris
Absolutely, yeah.
Dan Snow
Okay, so we've got Constantine founding it. When does it start to take on this almost an imperial city, a real center of Roman power?
Jonathan Harris
Well, it proves a very attractive place to live. I mean, the emperor spends a lot of time there. Increasingly you've got two emperors, one in the west who lives, you know, in Ravenna or Milan, and one in the east who tends to live in Constantinople. So if the court's there, anyone who wants to make their way in the world is going to go there as well. So the population skyrockets during the 4th and 5th centuries. So by the time we get to about the year 500 CE, we're talking a population that must have been edging onto a million. There are complaints that the whole place is a kind of building site and they're actually putting piles into the sea and building out, you know, to make a platform out into the sea so they can stick more houses in because there's so many people there. The sheer size of Constantinople means it become a capital city, certainly the capital city of the eastern half of the Roman Empire, whether Constantine meant it to be like that. But that is effectively what it's become simply by this huge increase in population.
Dan Snow
And we should also talk about the famous walls, because I always think it's fascinating the great catastrophic defeat at Adrianople suffered by the Roman Empire when the Goths destroy an imperial army and an emperor is killed. Actually Byzantium or Constantinople is threatened then, but the Goths are unable to capture it because of its natural position, its walls, its defences.
Jonathan Harris
Well, yes, I mean, one of the first things Constantine did was to provide his new city with a wall. The problem with that wall, though, when the city grew so huge, the suburbs stretched far beyond it, you know, the walls hadn't enclosed a large enough space. So come the early 5th century, following the defeat by the Goths, the news arrives that the Huns are on the way. And this causes absolute panic. And this point, the emperor is called Theodosius ii. He's only a child at this time, he's the emperor. So they build a new set of walls in record time, in the year 413 they begin and they come up with these sort of three tier walls which are a moat, an outer wall and an inner wall. And these stretch all the way from the Golden Horn down to the Sea of Marmara. With about 96 towers on the inner wall, and they are, to all intents and purposes, impregnable. The Huns take one look at them and decide, we'll go for something a bit easier, thank you very much. And off they go. They do save Constantinople again and again and again.
Dan Snow
So Constantinople is not just a strategically important place, it really is just an incredibly well defined nature. And then Theodosius and others have given it incredible artificial protection as well. So it's a real rock for the Eastern Empire?
Jonathan Harris
Well, it is, very much so. And it's defended not only by land, but by sea as well, partly by geography, because the currents in the Golden Horn would make it very difficult to make a landing on, certainly on the southern coast of Constantinople's triangle. And the Golden Horn, of course, could be sealed off with a chain, and there are sea walls as well, going all around it. So it is really a very tough nut to crack. But then within it, to make it even more impressive, successive emperors provided it with an extraordinary set of monuments, buildings and churches, some of which still survive today.
Dan Snow
Of course, you know, you say tough nut to crack, I mean, there's examples, aren't there, of enemies marching right across Roman provinces, but then falling short when they get to Constantinople. And just having that little kernel, having that little source of strength, allows people like Heraclius and others to then launch counterattacks that can win back entire provinces. So it feels like a very important base.
Jonathan Harris
It does, really, because you think what happens, really, from the 5th century onwards, the whole of the Western Roman Empire is lost, but that's all gone by 500. Then come the seventh century, most of the east is lost as well. So North Africa, Egypt, Syria, Palestine, those all fall to the Arabs, the Empire, and I suppose you ought to call it the Byzantine Empire now, rather than the Roman Empire. That's left with Constantinople, Asia Minor, that is pretty much what is now Turkey, and then a few enclaves in the Balkans. They've lost most of the Balkans to the Slavs, so it looks as though it's doomed. How can it possibly survive?
Dan Snow
And in this period, they've got these magnificent buildings, you've mentioned, these churches, they've got gear from the Roman Empire, they've got sort of artifacts and statues. Did they call themselves Romans?
Jonathan Harris
They did. Right up to the end. Just about to the end, yes.
Dan Snow
But historians like to call it the Byzantine Empire. Just a. I mean, we should call them the Roman Empire. But it is just a bit confusing, isn't it?
Jonathan Harris
Well, it is at the end of the day. If you say Romans, we think of people with short hair wearing togas. The men, anyway. And the Byzantines tended to have long hair, long beards and to wear long robes. And they spoke Greek and they're Christian. There is a cultural difference, although there is a political continuity. The emperors of Byzantium are the direct successors of the emperors of Rome. So it's for our convenience, really, we adopt this adjective, Byzantine.
Dan Snow
And so, as you mentioned, the Arab conquest explodes out of Arabia and strips away many of the richest province of the Eastern Empire. So that's Palestine, Syria, Egypt, all the way through North Africa, back into Western Europe, in fact. Is Byzantine quite beleaguered at this point? Does it hold its own?
Jonathan Harris
Well, during the 7th and early 8th centuries, it comes under siege three times. First time by the Avars and the Persians in 626, then again, we reckon in 674, 28 for four years by the Arabs and then again in 717 to 18 by the Arabs again. And these got progressively worse because by the Last one, in 717, the Arabs attacked by both land and sea. They've literally got a large fleet which they brought into the Sea of Marma and sealed it off by water and they've built a trench which actually shadows the land walls and cuts it off by land. So we've got it in a vice and we're not going to go home. We're going to stay here, say the Arabs, until we take the place. So that is a very dangerous moment indeed. It looked very likely for a time that the city will fall.
Dan Snow
How did they hold out?
Jonathan Harris
Well, there's two stories to that. There's the real one and the mythological one. As far as the Byzantines were concerned, the Virgin Mary was the special protector of the city and she intervened to ensure that the Arabs were defeated. And then you can take the other view, which is the Arabs were unlucky in many ways. The winter was very harsh in 717 to 18, and the Arabs are there in their trench, besieging the land walls, and the ground is very hard, they've got nothing to eat, they're freezing cold. They start eating the camels and the horses and they suffer huge casualties from illness. Their fleet at sea is attacked by the Byzantines using their little secret weapon, which is Greek fire, which is some kind of accelerant which shoots out of a siphon and sets enemy ships on fire. That doesn't exactly help. Many of the Arab ships are actually crewed by Christians who then desert and take the ships over and join the Byzantines. It was just one thing went wrong after another, really, for the Arabs. And in the end, they withdrew.
Dan Snow
You listen to Dan Snow's history hit. This is an episode all about the history of Istanbul. More coming up. I'm Matt Lewis.
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Dan Snow
So that's what I find extraordinary about Constantinople's history, Byzantine imperial history is they're clinging to their city walls at various points, and yet they go on as a regional power, if perhaps not a great power for another seven centuries or something. I mean, it's extraordinary, isn't it?
Jonathan Harris
Well, it is. And I think they don't just bounce back. They become, for a time, really a very important regional power. Say by about 1050, they've pushed the frontier back to the Danube. They've incorporated Armenia, which had never been part of the old Roman Empire. They've retaken northern Syria, including Antioch. They have part of Italy, Constantinople itself, which the population had shrunk because, you know, in the difficult times, 7th 8th century, because of plague and siege, population increases. I mean, we're talking about 375,000 by about the year 1050. And the city is rich, notoriously rich, because Byzantines do very well out of trade. You've got the Arab merchants coming in along the Silk Road bringing silk and spices. You've got Russians coming down the Black Sea bringing furs and amber. You've got Western European, Italian merchants coming, bringing with them tin and wool. And these merchants bring their cargoes to Constantinople where they can sell them and then stock up with the products of other parts of the world, which they then take back home and sell for a huge markup. Now, most of these merchants are not Byzantine, but the Byzantine emperor does very well out of this because he charges a tax of 10%. 10% on everything that comes in and 10% on everything that goes out. They hadn't read Adam Smith. The Byzantines imports and exports are taxed at exactly the same rate. So he's skimming off all this money from this vibrant trade without lifting a finger, which means that he always has a plentiful supply of gold coins, which he can use to field very large armies against his enemies.
Dan Snow
Well, cash is the sinews of war, for sure. So he managed. They do. That's how they managed to hold out in a pretty rough neighbourhood. Strangely, one of the bizarre things about Byzantine history is when the city does fall is in fact, to a Christian army.
Jonathan Harris
Yes. I mean, power comes and goes, doesn't it, really? I mean, the Byzantines are riding high in 1050. But then everything starts to go wrong. The Seljuk Turks start to encroach on their eastern frontier, and by about the year 1085, they've lost most of Asia Minor, what is now Turkey. It's, in fact, when Turkey becomes Turkey. So the Byzantines tended, when in a difficult situation, to see if they could find somebody else to do the fighting for them. They had large numbers of gold coins, so you can simply pay somebody. And so they thought, well, we'll pay those Western Europeans. We'll bring them in Western European Christians, Normans and Frenchmen and those kind of people, and we'll set them against the Seljuk Turks. So embassies are sent and the Western Europeans do come. It's called the First Crusade, and the Byzantines do quite well out of it, because thanks to passage of the First Crusade, they can reconquer quite a lot of Asia Minor. The trouble is, of course, is that it does lead to some tension between the Christians of Byzantium and those of the West. There is a religious schism and Christians in the west think the Byzantines haven't really been very helpful when it comes to retaking and holding Jerusalem. Now, the Fourth Crusade didn't aim to go to Constantinople. It was supposed to go to Egypt, but it got diverted when a Byzantine prince sort of recruited them to take his side in a civil war. So they go to Constantinople, they help him in the civil war, but then he can't pay them like he promised. He found he didn't actually have as much money as he thought he did. They end up capturing the place and they sack and burn it and cause immense damage and even set up one of their own as a new Byzantine emperor. For a moment, it looks as if the Byzantine Empire is dead. So you're right, it's ironically, the blow came from the west, from the Christians, not from the traditional Muslim enemy.
Dan Snow
And yet, like a dead man walking, Byzantium comes back. The empire staggers on for a couple hundred more years. I mean, it is one of the great survivors.
Jonathan Harris
Never underestimate the Byzantines. Yeah, they always come Bouncing back. And they did come bouncing back in 1261 and reconquer Constantinople, reconstitute the Byzantine Empire. But it's never quite the same again, really. They're smaller and they're shrinking. And really the seminal date is actually 1354, because in 1354, a small, almost unnoticed Turkish emirate manages to cross the Dardanelles and gain a foothold at Gallipoli. They capture the town of Gallipoli. An earthquake had leveled the walls of. Now, this Turkish emirate was known as the Osmandli, or Ottoman Emirate. And from that moment, it ceases to be just an obscure bunch of Turks in Asia Minor and becomes the beginnings of a great empire, because from Gallipoli they spread out into the Balkans, they capture Adrianople, they cut Constantinople off by land. So from about 1360, Constantinople really is a kind of island in an Ottoman sea. But it's still got an emperor. He still calls himself the Emperor of the Romans, Emperor and autocrat of the Romans, and signs himself in purple ink, but he's not really emperor of anything very much.
Dan Snow
Does it still have a sort of moral, intellectual authority? Do people kind of go there and pilgrimage and do they listen to what the emperor or the patriarch and the religious patriarch have to say? Does it matter in the world at all, even in its shrunken form?
Jonathan Harris
Well, it does, believe it or not, because the Russians and other Orthodox Christians look to it as a kind, kind of spiritual center. They had received Christianity from Constantinople, they certainly go on pilgrimage there. And curiously, as well as the 14th century goes on, more and more Italians are wanting to learn Greek. As the Italian Renaissance gets going, so many of them travel there specifically to learn Greek and also to get hold of books of the ancient Greek classics, which are not available in Western Europe. I mean, you couldn't get the works of Plato in Western Europe. They'd been lost. So it still is a kind of intellectual centre, it's a spiritual centre and it's also an economic center because the Venetians and Genoese run its trade, which is still buoyant. It's no longer really the centre of an empire, but it's still an important city.
Dan Snow
Did the Ottomans make several attempts to capture it, or is it just with the one great effort in the middle of the 15th century?
Jonathan Harris
Oh, and it wasn't for want of trying. They certainly did. They actually, in 1394, launch a siege and they are determined to take it. They besiege it for eight years. How long they would have gone on for, I don't know. But then they're distracted by an attack from the rule of Samarkand in the east, so they had to break off the siege and that's that in 1402. They try again in 1422, and this time they bring cannon with them and they set up their cannon. They start bombarding the Theodosian walls. They concentrate their fire on one particular tower, which looked a bit dodgy. They hit it 70 times and it still doesn't fall down. So the siege has to be broken off. So they certainly had tried, but it's.
Dan Snow
A portent of things to come, because in 1453, is it they bring back more cannon and bigger cannon.
Jonathan Harris
Well, yes, there's a new sultan on the throne. He's young and ambitious. His name's Mehmet ii. And he's also thought very carefully about what we're going to need to take Constantinople. And he looks at the other sieges and there were certain things they didn't have. The main one was not so much lack of cannon, it was lack of a fleet. Because the Ottomans, you know, they originate in Central Asia, they'd never been much of a sea power. And Mehmet decides to remedy that. So he builds a fleet of several hundred vessels at Gallipoli and sails those up to blockade the city by sea. So we've got that to try and keep out any hope of anyone relieving the city by sea. But he also brings along much larger cannon that can have a real impact on masonry. But it's also. It's the way he uses them. He doesn't just use them to batter the walls, he puts them on the Bosphorus to sink any vessels that might be coming down from the Black Sea to bring supplies to Constantinople. And he moves them around as well, trying out various places. Eventually he finds the best place, and that's where he concentrates his farm with these very large cannon. Apparently, the biggest had been built for him by a Hungarian engineer called Urban, and he'd actually offered this cannon to the Byzantine emperor, but the Byzantine emperor couldn't afford it, so he took it to Mehmet, who very much could afford it. Wow.
Dan Snow
Highest bidder. Interesting. And tell me, what effect did that have on the walls?
Jonathan Harris
Well, I mean, they don't fall straight away. Takes six weeks. But in medieval terms, that is actually quite a short time really, isn't it? Because when news reaches Western Europe that Constantinople is being attacked, well, they remember last time when, you know, they remember that time back in 1394, it's eight years. So I think, oh, we've got plenty of time to send help. So the Venetians, who don't want it to fall because they have commercial interests there, start to gather a fleet. But what they don't know is going on is the walls are coming down. Now, the Byzantines are very lucky because they've got a Genoese mercenary called Giovanni Giustiniani commanding the defence. And what he does is, as the walls come down, he plugs the gap with piles of earth and branches and anything else that can go in them. And actually those piles of earth are a lot more effective because they just soak up the cannonball. So it's certainly thanks to Giovanni, it takes six weeks and not actually one week. Nevertheless, the gaps are there. And what Mehmet has done is he's brought up an army of about 80,000 men. So the one in 1422, it was about 10,000, so it's a much larger army. And he just sends in on the night of 29th May 1453, human way. So he sends in first his Christian allies. They're kind of dispensable, and he knows full well they won't break through. He's got actually his elite troops, the janissaries, behind them with drawn swords, so if any of them try to run away, they'll be cut down by the janissaries. So they get hurled up against the defense and they're just to tar the defense out. Then he sends in the Bashi Buzuk, which are the Turkish troops. They get quite a long way, but eventually they get pushed back. But by this time, Mehmet has noticed that Giovanni Giustiniani has disappeared, the guard being injured. So he's gone, you know, to the dressing station to have his wound tended to and the defence starts to waver and Mehmet sees that and now he says, right, send in the janissaries, the elite, and they then go in and the defense, they put up a very good fight, but they're overwhelmed by sheer weight of numbers. The Emperor dies leading the defence and the Turks break in. It's the early hours of 29 May, 1453.
Dan Snow
Giovanni Giustiniani, his departure from the battlefield arguably causing that collapse in morale. But does he get to that dressing station? Does he escape?
Jonathan Harris
Well, yes, a lot of people were ready to blame him, especially the Venetians, because the Venetians hated the Genoese. Very raw deal. Very, very raw deal. I mean, he really did. I mean, the man, what. The man had been injured and he'd also done Absolutely marvellous work in a hopeless situation. They get him to a ship and he does escape, but he dies a few weeks later on the island of Chios of his wounds. So he clearly had been pretty badly injured, to be fair.
Dan Snow
And the city's population, including the Emperor, what happened to them?
Jonathan Harris
Well, the Emperor, we assume he dies. There's various accounts of how he died, nobody knows, but certainly he was never seen again. I think it's about 3,000 people are killed in the fighting, they reckon, and every. Anyone who's in the city, who the Turks find will be is enslaved, literally chained up, taken away to Adrianople and, and sold into slavery. I think some people did manage to hide. The Venetians and Genoese had ships, so most of them got away by. A lot of them got away by ship. But for the Byzantines, I'm afraid, yes, it was, it was slavery. What you could do, if you have friends on the outside somewhere, they could buy your release. But a lot of people for the rest of their lives would have been slaves.
Dan Snow
You listen to Dan Snow's History Hit. This is an episode all about the origins of Istanbul. More coming up. I'm Matt Lewis.
Dr. Eleanor Yanaga
And I'm Dr. Eleanor Yanaga. And in Gone Medieval, we get into the greatest mysteries, the gobsmacking details and latest groundbreaking research from the greatest millennium in human history. We're talking Vikings, Normans, Kings and popes.
Jonathan Harris
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Jonathan Harris
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Dan Snow
Does it make any sense? Got the last vestige of the Roman Empire, or was it so changed by that stage that it's almost meaningless?
Jonathan Harris
Well, it is really. And of course, Constantinople, in that last hundred years, large parts of it were derelict, so many of those splendid buildings had fallen into decay. I mean the, the Great Cathedral of the Holy Wisdom, or Hagia Sophia, which had been built by Justinian in the sixth century, that of course was still in good rep and that just is turned into a mosque. But many of the other buildings were not. For example, there was another church, the Church of the Holy Apostles, which was almost as large and splendid as Hagia Sophia, also built by Justinian. But the whole place was crumbling, so the Ottomans demolished it and put the Mosque of the Conqueror in its place. So to some extent, the old Byzantine city had largely vanished even before the Ottomans arrived.
Dan Snow
So the fall of Constantinople traditionally was said to be one of the great turning points of history and helped that the idea was that lots of the centre of sort of Christian learning moved west and spurred the Renaissance, all that kind of stuff. But anyway, let's talk about its effect on the city itself and indeed this new empire. Was this a big moment in terms of the Ottoman expansion?
Jonathan Harris
Well, it is really, because the Ottomans had always up to that point been a bit looked down on by some of their neighbors and they don't speak Arabic or Persian, you know, civilized languages like that. They come from Central Asia, you only have to go back a few generations. And all they are sort of sheep stealers really. So they look down on and now suddenly a, they've pulled off this fantastic victory for Islam. After all, the Prophet Muhammad himself in one of the hadiths had said, well, you know, what a wonderful army it would be of the faithful that takes Constantinople. And they'd done it. And secondly, they've got one of the great centres of authority. So it's clear that Mehmet is seeing himself as a kind of replacement of the Caesars. That's really how he's pitching himself. He wants to be seen not just a ruler of Turks but, but as a universal ruler. So one of the first things he does once he's got this new city, he says, well a, I want a city that's got important buildings in it, so build me a nice new palace, please, and we'll have the Mosque of the Conqueror. And I would also like it to be repopulated not just by Muslims and Turks. He specifically invites Jews and Christians to inhabit his city. They're useful to him because he can levy an extra tax on them and they can do a lot of the jobs that the Muslims don't necessarily want to do, particularly involving themselves in trade. So he wants a universal city, not just a Turkish city.
Dan Snow
And to a large extent he achieves that.
Jonathan Harris
He certainly did. And it's taken further, of course by his successors, very much so, because in due course the, the Ottoman sultans are going to adopt the title of Caliph as well. Leaders of Islam, leaders of the faithful. So Constantinople then becomes the seat of the Caliph as well as being the seat of this very important Islamic empire. And come the early 16th century they're going to conquer Egypt, put paid to the Mamluk Sultanate there, which was their main rival, and push along the African coast. So it does become a major metropolis, the center of an empire once again, which it hadn't really been for quite a long time.
Dan Snow
Now, we can't possibly turn this podcast into just another whole separate thing about the Ottoman Empire. But so let's keep our focus on the city itself. It remains one of the world's great cities. Does it mirror the fortunes of the empire, or is it still in? As the Empire starts to crumble and fragment, does Constantinople remain dynamic, rich, important?
Jonathan Harris
Well, certainly, you know, mirrors the fortunes of the Ottoman Empire insofar as the reign of Suleiman the Magnificent is perhaps always considered the sort of high point of Ottoman fortunes. That's a period where some of the greatest Ottoman buildings are put up, particularly by the architect Sinan, who was responsible for the extraordinary Suleimani Mosque complex built between 1550 and 1557, which is one of the biggest big domes and minarets on the skyline of Istanbul even today. And as time goes by, of course, yes, the Ottoman Empire does go into decline, but Constantinople remains a very important regional center and of course, the capital of the Ottoman Empire, right up to its disappearance after the First World War.
Dan Snow
And interestingly, its geography remains important because the French and British spend a lot of time and propping it up as a bulwark against Russian expansion. So, again, just its simple position on the face of the planet means that it draws in the gaze of the great powers.
Jonathan Harris
Well, it is. It's a sort of nightmare that the Russians will have access to the straits and be able to take their fleet into the Mediterranean, which is something that the British and French are not keen on at all. Although it's ironic, of course, that they spent all the 19th century trying to keep the Russians out. And then, of course, during the First World War, when the Russians were their allies, they then, of course, try and themselves force the. The Dardanelles and fail spectacularly.
Dan Snow
Well, indeed. And then the Ottomans and the Habsburgs to throw in another name. People won't have heard in this podcast yet, but the Ottomans and the Habsburgs, who spend centuries juking it out for control of Eastern Central Europe, they end up going down in an embrace together in 1918. I mean, the First World War is absolutely full of these weird reversals.
Jonathan Harris
Yes, indeed. They go down and the Russians are. Turkey then becomes a republic under its new president, Kemal Ataturk, Mustafa Kemal, as was. And it's a huge change in Turkish society. They change the Alphabet, they change the way they dress, and they even all adopt surnames. Turks had never had surnames before, and suddenly they're all told, find yourself a surname.
Dan Snow
So Turkey, we should say the Ottoman Empire, loses the First World War. It is catastrophically defeated in the Balkans and in Arabia, Syria, and Palestine. What. What is the effect on the capital city of this new Turkish republic that emerges in the ashes of the old empire.
Jonathan Harris
To start with, Istanbul had been occupied. I'll call it Istanbul from now on. Istanbul had been occupied by the British and French and other powers while it was decided what to do with Turkey. Meanwhile, the Turkish Republic goes to war with Greece over possession of Asia Minor and comprehensively wins. Wins. So the allied powers are left in a dilemma. What do we do with Istanbul? Do we try to hold onto it against the Turkish Republic or do we withdraw and they withdraw? So Kemal Ataturk's Turks march into Istanbul. And one of the first things that Ataturk does is announce that the capital city is actually not going to be Istanbul, it's going to be angst. Because he wants to break with the old regime. He wants to set up a completely secular republic which has nothing to do with the religious belief of the individual. The Ottoman Empire, of course, had merged the two because the Sultan was both the head of state and the Caliph of Islam. So we're going to separate the two, says Ataturk. We're going to have a new capital in Ankara which relocates us in our heartland much further away from Europe. So Istanbul is relegated to second city, even though it was and is much, much bigger than Ankara. So to some extent it loses out. It's no longer a capital, it ceases to be a capital. First time in a very long time. But it also, it has an impact on its Byzantine inheritance. Because Ataturk says, okay, what we'll do is some of these Byzantine buildings, which are a kind of world heritage. Let's not have them as mosques anymore. Let's make them museums, which everyone can visit. So the obvious example is Hagia Sophia, which had been a Mosque since 1453. In 1936, Ataturk says it's going to be from now on a museum. And he calls in American archaeologists who then do a very careful job picking the whitewash of the Byzantine mosaics that still survived. They'd been whitewashed over in the wake of the Turkish conquest, but they'd been preserved by the whitewash. And these suddenly emerged to the light of day for the first time in centuries. And people are astonished by them. It's extraordinary. So it's this secularization has a big impact on the way Istanbul's non Muslim history is viewed.
Dan Snow
But Istanbul remains the biggest game in town. Ankara is the political capital. Istanbul sort of remains and grows and is a world city.
Jonathan Harris
Well, it certainly is. There's no doubt about it. I mean it's 25 million and rising. Its suburbs stretch for miles along the Bosphorus, right into Anatolia along the Sea of Marma. So it is a kind of megalopolis, there's no doubt about it. In recent years, of course, it's been acquiring the infrastructure to reflect that. The first Bosphorus bridge was built in 1973, but they've got two more now, spanking new airport and another one on the other side of the Bosphorus. And of course, the new metro system, which actually goes underneath the Bosphorus. So its infrastructure is very impressive, but there are huge problems simply because of the number of people. Any intensely populated urban area like that is going to encounter problems.
Dan Snow
So they're complaining about it in the 6th century and we're still complaining about it in the 21st.
Jonathan Harris
They certainly are. There were big protests, of course, in 2013, when one of the last green spaces just to the north of the Golden Horn at Gezi park was threatened with being concluded over as a shopping mall. And there were huge and quite violent protests all over Turkey.
Dan Snow
So the streets of Constantinople, of Istanbul, still direct action taken by its citizens when they're angry at their governors?
Jonathan Harris
Well, exactly. In Byzantine times, you didn't mess with the people of Constantinople. And I suspect that Mr. Erdogan hopefully has learned the lesson, don't mess with the people of Istanbul.
Dan Snow
Well, thank you very much for that sweeping view of thousands of years of the history of this extraordinary place. Jonathan Harris, tell us what the book you wrote about Istanbul is called.
Jonathan Harris
It's called Constantinople, Capital of Byzantium. It focuses on Constantinople as it was in the year 1200. And then you get the kind of backstory and then we flash forward as well to look at what happens either side of that. So it's a kind of snapshot.
Dan Snow
Well, thank you so much for coming on the podcast. Thank you very much for listening, folks. Remember to tune back in next week. We'll be running an episode featuring the great Matt Lewis on our sister podcast Gone Medieval, that delves into the really extraordinary story of the fall of Constantinople in 1453, still, I think, widely regarded as one of the most seismic dates in history. Till next time, bye bye. Foreign.
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Dan Snow's History Hit: Episode Summary - "The Origins of Istanbul"
In the episode titled "The Origins of Istanbul," historian Dan Snow delves deep into the rich and tumultuous history of one of the world's most strategically significant cities. Joined by Jonathan Harris, a professor specializing in Byzantine history at Royal Holloway, the discussion traverses millennia, exploring how geography, trade, and conquests have shaped Istanbul into the metropolis it is today.
Dan Snow opens the episode by emphasizing Istanbul's unique geographical position, noting its location at the crossroads of Europe and Asia and its control over the sole sea route to the Black Sea. This strategic placement has made Istanbul a coveted prize throughout history, influencing various empires and military campaigns.
"There is no city on earth with as dramatic and suggestive a geographical setting than Istanbul."
— Dan Snow [01:57]
Jonathan Harris traces the city's origins back to around 700 BCE when Greek settlers from Megara established Byzantium. The founding story, intertwined with myth, involves the settlers consulting the Delphic Oracle, which ambiguously guided them to the city's location.
"They sail up the Dardanelles, across the Sea of Marmara, put in one evening at the city of Halsedon on the Bosphorus... the city of Halseden apparently was founded before Constantinople."
— Jonathan Harris [06:38]
This strategic choice laid the foundation for Byzantium's future prosperity and resilience amidst shifting empires.
As Dan Snow and Jonathan Harris discuss, Byzantium thrived under Roman influence due to its advantageous position for trade. However, internal political shifts, such as siding with Sparta during the Peloponnesian War and later capitulating to the Romans, allowed the city to maintain a degree of autonomy and wealth from commerce.
"Byzantium sort of cozy up to them and then the Peloponnesian War... they manage to weather the storms."
— Jonathan Harris [08:38]
In the early 4th century, Emperor Constantine recognized Byzantium's strategic value and refounded it as Constantinople in 324 CE, intending it to serve as a new imperial residence.
"Constantinopolis... essentially the capital city of the eastern half of the Roman Empire."
— Dan Snow [10:23]
This transformation marked the beginning of Istanbul's prominence as a center of power, culture, and religion.
Constantinople rapidly became an imperial hub, boasting impressive population growth and architectural marvels. The city's formidable defenses, including the famous Theodosian Walls, played a crucial role in repelling numerous sieges, such as the Gothic attack at Adrianople.
"They build a new set of walls in record time... on the Bosphorus... the Huns decide, we'll go for something a bit easier."
— Jonathan Harris [15:57]
These defenses ensured the city's survival through centuries of external threats.
In the 8th century, Constantinople faced multiple sieges by Arab forces. The city's resilience was attributed both to legendary interventions, such as the Virgin Mary's protection, and practical defenses like Greek fire.
"The Byzantine emperor uses Greek fire... which sets enemy ships on fire."
— Jonathan Harris [20:47]
These elements combined to thwart the Arab advances, securing Constantinople's legacy as an impregnable fortress.
Despite its defensive prowess, the Byzantine Empire gradually lost territories to emerging powers like the Seljuk Turks. By the 15th century, Constantinople became increasingly isolated, leading to its eventual fall.
"He puts them on the Bosphorus to sink any vessels that might be coming down from the Black Sea... the Emperor dies leading the defence."
— Jonathan Harris [30:51]
The decisive Ottoman siege in 1453, led by Sultan Mehmet II, culminated in the city's fall after six weeks of relentless bombardment and strategic assaults.
Post-conquest, Istanbul transformed into the heart of the Ottoman Empire. Sultan Mehmet II repopulated the city, inviting Jews and Christians to foster a diverse and economically vibrant metropolis. The city's architectural landscape evolved with landmarks like the Mosque of the Conqueror and the Suleimaniye Mosque, reflecting its Islamic heritage.
"He wants a universal city, not just a Turkish city."
— Jonathan Harris [38:15]
Istanbul continued to be a vital economic and cultural hub, maintaining its importance even as the Ottoman Empire expanded its reach.
The episode concludes by exploring Istanbul's enduring legacy into the modern era. Despite losing its status as the capital to Ankara in 1923, Istanbul remains Turkey's largest and most dynamic city. Modern infrastructure projects and its role as a bridge between continents underscore its continued significance.
"In recent years, of course, it's been acquiring the infrastructure to reflect that... the new metro system, which actually goes underneath the Bosphorus."
— Jonathan Harris [44:25]
The city's ability to adapt and thrive reflects the resilience embodied throughout its extensive history.
Throughout the episode, Jonathan Harris and Dan Snow highlight Istanbul's unique ability to serve as a linchpin in global history, influenced by its geography and the interplay of diverse cultures and empires. The city's enduring presence is a testament to its strategic significance and the indomitable spirit of its inhabitants.
"Never underestimate the Byzantines. Yeah, they always come bouncing back."
— Jonathan Harris [21:52]
As Istanbul continues to evolve, its historical legacy remains a cornerstone for understanding both past and present global dynamics.
Notable Quotes:
"There is no city on earth with as dramatic and suggestive a geographical setting than Istanbul."
— Dan Snow [01:57]
"They build a new set of walls in record time... on the Bosphorus... the Huns decide, we'll go for something a bit easier."
— Jonathan Harris [15:57]
"He wants a universal city, not just a Turkish city."
— Jonathan Harris [38:15]
"Never underestimate the Byzantines. Yeah, they always come bouncing back."
— Jonathan Harris [21:52]
This comprehensive exploration offers listeners a nuanced understanding of Istanbul's pivotal role in shaping world history, underscored by expert insights and engaging narratives.