2026 marks the 250th anniversary of American independence, and here in Boston Independence Day comes early, on a holiday we celebrate every year on March 17 as Evacuation Day. In the early months of 1776, the American Revolution was stuck in a freezing, muddy stalemate. For nearly a year, George Washington’s fledgling Continental Army had kept the British regulars pinned inside the city of Boston, but without heavy artillery, they lacked the muscle to actually end the occupation. Washington, frustrated and desperate, even fantasized about a suicidal frontal assault across the ice of the Charles River. But the arrival of Henry Knox and his “noble train of artillery”—dozens of cannons hauled 300 miles through the winter wilderness from Fort Ticonderoga—flipped the script overnight. This episode explores the high-stakes gambit that followed: the secret, overnight fortification of Dorchester Heights.

We’ll dive into the primary accounts of those who lived through it—from Abigail Adams listening to the earth-shaking roar of a diversionary bombardment, to British officers waking up to find a “miraculous” fortress staring down their throats. You’ll learn how Washington used the best tactics and technology of 18th-century military engineering, like portable bulletproof shields crafted of wicker and dirt, known as Gabions, Fascines and Chandeliers, pulling off a logistical feat that left the British commander, General Howe, stunned. It’s a story of military brinksmanship, a providential storm that changed the course of history, and the chaotic, plundering retreat of the British that we remember every March 17th as Evacuation Day. Join us as we go behind the lines of the first great American victory of the war.

Full show notes: http://HUBhistory.com/348/

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Boston's Independence Day: Evacuation Day at 250