Podcast Summary: New Books Network – Andrew S. Curran on “Biography of a Dangerous Idea: A New History of Race from Louis XIV to Thomas Jefferson”

Overview

This engaging episode features Caleb Zakrin (host) in conversation with Andrew S. Curran, professor of Humanities at Wesleyan University, about his upcoming book Biography of a Dangerous Idea: A New History of Race from Louis XIV to Thomas Jefferson (Other Press, 2026). The discussion traces the development of race as a scientific and social concept from the late 17th century through the Enlightenment, using biographical sketches of key figures who shaped and transmitted these ideas. Curran’s narrative scrutinizes the contradictions at the heart of the Enlightenment, showing how the era that championed liberty and reason simultaneously constructed and entrenched racist ideologies.

Key Discussion Points & Insights

The Genesis and Trajectory of the Book

• Personal Motivation and Academic Journey
  Curran began exploring the idea of race in the late 1990s, inspired by visible racial tensions and legacies of colonization in New York City. His scholarship developed from an early exhibition on proto-racism in travel writing, through his intellectual history work (Anatomy of Blackness), to a vertical study with Henry Louis Gates Jr. (Who’s Black and Why?) focused on a 1741 contest about the source of Blackness (03:03–07:55).
• Biographical Structure This book utilizes 13 biographical sketches, treating each figure as an “allegory” for a major tendency or controversy in the development of racial thought—tracing a path from royal policy under Louis XIV to Thomas Jefferson’s Enlightenment-infused racism (07:55–08:16).

From "Free Soil" to the Age of Plantation: Louis XIV & the Code Noir

• Shifting Contexts of Enslavement
  Louis XIV’s role is not primarily as a “king of enslaved people,” but as the monarch overseeing the drafting of the Code Noir—foundational for legally codifying slave systems in French colonies and echoed globally (08:57–15:09).
• Explosion of Enslavement
  The number of enslaved people in French colonies grew from thousands during Louis XIV’s time to over 1.3 million transported, with 500,000 enslaved in Saint-Domingue (Haiti) by the Revolution (15:09–16:50).
• Racism and Literacy
  “One of the most powerful forces in creating race is literacy...The more literate and enlightened a country is, the more that racism is going to permeate that country in the 18th century.” — Curran (13:59)

Early Ethnography & Travel Literature

• Jean-Baptiste Labat
  Labat, a Dominican priest-plantation owner, wrote travelogues (e.g., New Voyage) that provided “raw material” for later racialists. His works were widespread, including on Jefferson’s shelf, and delivered descriptions foundational for Enlightenment classifiers—even if the original texts lacked explicit biological racism (17:34–22:06).

Defining and Classifying Race: The Move from Variety to Essence

• François Bernier & Early Classification Bernier is marked as the first to use “race” in a zoological, lineage-based sense—breaking with previous descriptors like “nations” and “varieties”—and laying groundwork for rational, empirical divisions among humans (22:26–25:42).
• Linnaeus and Taxonomy Carl Linnaeus, best known for binomial nomenclature, classified humans into varieties in his Systema Naturae, shifting from geography/color to interior/humoral differences (26:29–31:19).
  • “His classification of the human is almost an afterthought...But even as an afterthought, he essentially creates the first hierarchical taxonomy of humankind.” — Curran (29:49)

Buffon’s Degeneration Theory & Enlightenment Contradiction

• Georges-Louis Leclerc, Comte de Buffon Buffon rejected Linnaeus’s static taxonomy for a model where climate induced change (degeneration) from an original (white) prototype, justifying white primacy. Although he preferred “varieties” to “races,” Buffon’s quasi-materialist history set the stage for later biological racism (31:59–37:19).
  • “[Buffon] creates not only the superiority of whites...but the primacy of the white race as being the first one and all other groups as degenerate.” — Curran (36:15)
• Enlightenment Racism The drive to rationalize and classify underpinned new conceptions of race, which only acquired their full, “scientific,” and deeply racist form when debates on slavery intensified in the late 18th century (38:04–40:50).

Philosophes and Racial Thought

• Voltaire: Polygenesis vs. Degeneration Voltaire, motivated by anti-clericalism, rejected degeneration and instead posited different species of humans (polygenesis), using morphological arguments and stereotypes. Though initially dismissed, polygenesis would gain ground in the 19th-century U.S. (41:10–45:42).
  • “To justify this he grabs hold of some of the most racist tropes of the 18th century.” — Curran (43:35)

The Scottish Enlightenment: Economics, Progress, and Race

• Hume, Smith, Robertson David Hume denied climate-based difference and advanced a proto-stage theory; Adam Smith saw differences as circumstantial rather than racial; William Robertson, through The History of America, offered monogenist yet developmentalist and denigrating views of Indigenous people, influencing U.S. ideas of Manifest Destiny (46:12–52:12).

The Germans: Kant and Blumenbach

• Blumenbach: Craniometry and Racial Types Blumenbach, resisting polygenesis, categorized five races by anatomical observation, and popularized the “Caucasian” skull as the original (53:07–57:04).
• Kant: Philosophical Foundations of Race
  Kant provided the first systematic definition of race, tying it to an inability to “regenerate” original characteristics and employing philosophical reasoning to fix human groups as distinct (not just via climate or geography).

Thomas Jefferson: Race, Nation, and Enlightenment Hypocrisy

• Racial Synthesis Jefferson exemplifies the contradiction of Enlightenment ideals: “...the big Enlightenment paradox.” He synthesized ideas from all major 18th-century racial theorists, drawing directly on French naturalists, and put forward in Notes on the State of Virginia a vision where whites and Blacks could not coexist, advocating colonization and ultimately arguing for Black inferiority (57:45–64:35).
  • “He had an enormous collection of travelogues, a collection of the raciology...He synthesized all this in this Notes on the State of Virginia.” — Curran (59:45)
  • “...he is hypocritical...He is trying to maintain two truths at the same time, and he'll write one thing to one person and something else to someone else.” — Curran (63:55)

Notable Quotes & Memorable Moments

• On Literacy and Racism

  “The more literate and enlightened a country is, the more that the information being generated by naturalists, classifiers, et cetera, becomes accessible to them...the more that racism is going to permeate that country.” — Andrew Curran (13:59)

• On Enlightenment Rationalization

  “The 18th century...loves rationalization, classification, explanation without recourse to the Bible...These are the things which set the stage for a reconceptualization of the human species in a way that had never ever been done before.” — Curran (38:20)

• On Voltaire’s Racial Logic

  “He brings together all of the most racist tropes of the 18th century...to justify what is known as polygenesis, the notion that there’s separate species of human.” — Curran (43:35)

• On Judging Enlightenment Figures

  “History is a trick that we play on the dead. And it certainly is, because different historians will say different things about the same people over time.” — Curran quoting Voltaire (65:21)

Key Segment Timestamps

• [03:03–07:55]: Curran describes his academic journey and the origins of the book’s approach.
• [08:57–15:09]: The significance of Louis XIV, the Code Noir, and the role of literacy.
• [17:34–22:06]: Jean Baptiste Labat’s travelogues as sources for Enlightenment raciology.
• [22:26–25:42]: François Bernier’s proto-scientific approach to defining race.
• [26:29–31:19]: Linnaeus’s binomial nomenclature and initial human taxonomies.
• [31:59–37:19]: Buffon’s degeneration theory—climatic, mutable conceptions of race.
• [41:10–45:42]: Voltaire and polygenesis; Enlightenment contradictions.
• [46:12–52:12]: The Scottish Enlightenment: Hume, Smith, Robertson, and Amerindian “stages.”
• [53:07–57:04]: Blumenbach’s craniometry and Kant’s philosophical race theory.
• [57:45–64:35]: Thomas Jefferson as an Enlightenment paradox, synthesizing racist ideology.

Concluding Reflections

• Curran and Zakrin explore the complexities—and enduring tensions—of Enlightenment thought, highlighting how even the era’s brightest thinkers became architects or transmitters of racist ideas.
• The episode closes by foregrounding the counter-examples—figures like Diderot, and especially Black writers like Phillis Wheatley—who, through literacy and self-narration, stood as living refutations of racist dogma (68:14–end).
  • “By demonstrating literacy, which is one of the major kinds of things that Europeans said they had a monopoly on...they were really refuting race at its heart.” — Curran (71:25)

Overall, the episode provides a nuanced, story-driven, and critical examination of how modern concepts of race were forged at the intersection of science, philosophy, politics, and economics in the Enlightenment—often by thinkers in dialogue, competition, and contradiction.

Listeners will gain:

• An accessible intellectual history of race’s evolution during the Enlightenment
• Biographical context for major and lesser-known figures who shaped racial thought
• Insights into the complex legacy of Enlightenment ideals, the roots of racist ideology, and the counter-movements that challenged them

Recommended for:

• Scholars, educators, and lay readers interested in history, philosophy, and the problematic roots of race and racism in the modern world.