Experts on History

The Genius of their Age: Ibn Sina, Biruni, and the Lost Enlightenment with Frederick Starr

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Oct 16, 2026
S. Frederick Starr, an American scholar and Central Asia expert, brings Ibn Sina and Biruni’s brilliant world to life. Explore their breakthroughs in medicine, astronomy, mathematics, geography, and philosophy. Their rivalry, recovered correspondence, dangerous journeys, and pursuit of universal knowledge reveal a forgotten intellectual renaissance centuries ahead of Europe.
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INSIGHT

Two Geniuses Who Transformed Nearly Every Field

  • Ibn Sina and Biruni achieved breakthroughs across medicine, astronomy, mathematics, anthropology, and geography, rivaling later Greek and Renaissance giants.
  • Ibn Sina systematized medicine for six centuries, while Biruni measured Earth, anticipated inhabited American continents, and created a world clock.
INSIGHT

Their Rivalry Was Really A Battle Over Truth

  • Their rivalry reflected opposing theories of truth: Biruni demanded mathematical proof, while Ibn Sina relied on logic and syllogisms.
  • Despite unstable rulers, threatened executions, and unreliable patrons, both continued pursuing foundational questions.
ANECDOTE

A Lost Correspondence Revealed Their Rivalry

  • While researching Lost Enlightenment, S. Frederick Starr discovered preserved correspondence between the two young intellectual rivals.
  • The surviving letters reveal feistiness and ambition, though Biruni’s originals and much of the exchange disappeared.
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