2 geniuses born on August 21 — including Augustin-Louis Cauchy and Lili Boulanger. Explore their biographies, IQ scores, and achievements.
Augustin-Louis Cauchy, Lili Boulanger — 2 geniuses in total share this birthday.
leo is the zodiac sign for people born on August 21.
Vingt questions, huit minutes au chronomètre et un centile mesuré face à tous ceux qui l’ont passé. Sans inscription.
Passer le test de QI →Among the 1 geniuses with known IQ scores born on this date, the average estimated IQ is 160.
Discover history's greatest minds — biographies, IQ scores, quotes, and more.
Explore All 1,100+ Geniuses →