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September 21
Geniuses Born on September 21
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 <br> Onnes-effect <br> Superconductivity <br> Virial equation of state
A Dutch physicist and Nobel laureate who liquefied helium for the first time in 1908.
♈ virgoRead article →Profile →
Girolamo SavonarolaIQ 155
1452–1498 · Italy
Italian Dominican friar and preacher.
An Italian Dominican friar from Ferrara and preacher active in Renaissance Florence
♈ virgoRead article →Profile →
Charles Nicolle
1866–1936 · France
Identifying lice as the transmitter of epidemic typhus.
A French bacteriologist who received the Nobel Prize in Medicine
♈ virgoRead article →Profile →
Herbert George Wells
1866–1946 · United Kingdom
The Time Machine <br> The Invisible Man <br> The War of the Worlds <br> The Island of Doctor Moreau
An English writer who is one of the best-known sci-fi authors of the 20th century.
♈ virgoRead article →Profile →

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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.

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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