Free PDF: The Genius Workout — 50 brain teasers + the 25 highest IQs in history.

Theon of Alexandria: Biography, Achievements & Lasting Legacy

By Geniuses.Club Editorial Team | August 02, 2026 | 0335–405
Portrait of Theon of Alexandria
Theon of Alexandria

Who Was Theon of Alexandria?

Theon of Alexandria (; Ancient Greek: Ī˜Ī­Ļ‰Ī½ ὁ į¼ˆĪ»ĪµĪ¾Ī±Ī½Ī“ĻĪµĻĻ‚; c. AD 335 – c. 405) was a Greek scholar and mathematician who lived in Alexandria, Egypt. He edited and arranged Euclid's Elements and wrote commentaries on works by Euclid and Ptolemy. His daughter Hypatia also won fame as a mathematician.

Key Facts

Legacy and Impact

The influence of Theon of Alexandria extends far beyond his own lifetime. He fundamentally shaped the foundations of modern mathematics, and his theorems and mathematical frameworks remain foundational to this day.

Though he passed away in 405, his ideas continue to be studied, debated, and built upon by scholars and practitioners worldwide.

Discover more brilliant minds in Mathematics

Explore Mathematics Geniuses

Explore More

Read the full profile of Theon of Alexandria

View Theon of Alexandria's Profile →

Trending Comparisons

Albert EinsteinVSIsaac NewtonEinstein vs NewtonWho ranks higher? →Leonardo Da VinciVSNikola TeslaDa Vinci vs TeslaWho ranks higher? →Marie CurieVSStephen HawkingCurie vs HawkingWho ranks higher? →Ada LovelaceVSAlan TuringLovelace vs TuringWho ranks higher? →Bobby FischerVSJohn Von NeumannFischer vs Von NeumannWho ranks higher? →

Top IQ Rankings

Highest IQ in HistoryTop 100→Greatest PhysicistsTop 38→Greatest MathematiciansTop 29→

Child prodigies

Kim Ung-yongKim Ung-yongTested IQ 210 — Guinness Record Holder, NASA Engineer at 8, PhD…Shakuntala DeviShakuntala DeviMultiplied two 13-digit numbers in her head in 28 secondsStephen WiltshireStephen WiltshireAutistic Savant Drawing Entire Cities from Memory — MBE from…Michael KearneyMichael KearneyBachelor's at 10 Years, 4 Months — Youngest U.S. College…
Child prodigies →

Play & come back tomorrow

šŸ”„ Daily Genius Challenge
🧠 Which Genius Are You?šŸ“Š Free IQ Test