9月 21
9月21日生まれの天才
4 Geniuses virgo
🧠Average IQ of geniuses born on this day: 165
🌍Most represented country: Netherlands (1)
📅Eras: 19th Century (3), Medieval (1)

Geniuses Born on September 21

4 geniuses born on September 21 — including Heike Kamerlingh Onnes, Girolamo Savonarola, and more. Explore their biographies, IQ scores, and achievements.

Heike Kamerlingh OnnesIQ 175
1853–1926 · Netherlands
Liquid helium • Onnes-effect • Superconductivity • Virial equation of state
A Dutch physicist and Nobel laureate who liquefied helium for the first time in 1908.
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Girolamo SavonarolaIQ 155
1452–1498 · Italy
Italian Dominican friar and preacher.
An Italian Dominican friar from Ferrara and preacher active in Renaissance Florence
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Charles Nicolle
1866–1936 · France
Identifying lice as the transmitter of epidemic typhus.
A French bacteriologist who received the Nobel Prize in Medicine
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Herbert George Wells
1866–1946 · United Kingdom
The Time Machine • The Invisible Man • The War of the Worlds • The Island of Doctor Moreau
An English writer who is one of the best-known sci-fi authors of the 20th century.
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⚔️ Heike Kamerlingh Onnes vs Girolamo Savonarola📋 Browse All Lists📰 Blog Articles🎂 All Birthdays

Frequently Asked Questions

Which geniuses were born on September 21?

Heike Kamerlingh Onnes, Girolamo Savonarola, Charles Nicolle, Herbert George Wells — 4 geniuses in total share this birthday.

What is the zodiac sign for September 21?

virgo is the zodiac sign for people born on September 21.

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What is the average IQ of geniuses born on September 21?

Among the 2 geniuses with known IQ scores born on this date, the average estimated IQ is 165.

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