Free PDF: The Genius Workout — 50 brain teasers + the 25 highest IQs in history.
January 21
Geniuses Born on January 21
4 Geniuses aquarius
🧠Average IQ of geniuses born on this day: 168
🌍Most represented country: United States (2)
📅Eras: Modern (3), 19th Century (1)

Geniuses Born on January 21

4 geniuses born on January 21 — including Pitirim Sorokin, Paul Allen, and more. Explore their biographies, IQ scores, and achievements.

Pitirim SorokinIQ 175
1889–1968 · Russia
Leaves of a Russian Diar
A Russian-American sociologist and political activist, who contributed to the social cycle theory.
♈ aquariusRead article →Profile →
Paul AllenIQ 160
1953–2018 · United States
Co-founder of Microsoft
American businessman, investor and philanthropist best known for being Microsoft Co-Founder
♈ aquariusRead article →Profile →
Plácido Domingo
b. 1941 · Spain
A Spanish opera singer, conductor and arts administrator.
♈ aquariusRead article →Profile →
Ashton Eaton
b. 1988 · United States
Holding the world record in the indoor heptathlon
A retired American decathlete and two-time Olympic champion, who holds the world record in the indoor heptathlon event.
♈ aquariusRead article →Profile →

More Geniuses Born in January

January 1 (10)January 2 (3)January 3 (2)January 4 (2)January 5 (2)January 6 (5)January 8 (3)January 10 (2)January 11 (2)January 12 (4)January 13 (2)January 14 (1)January 15 (3)January 16 (1)January 17 (3)January 18 (4)January 19 (6)January 20 (3)January 22 (8)January 23 (1)January 24 (5)January 25 (5)January 26 (5)January 27 (6)January 29 (6)January 30 (2)January 31 (4)

Explore More

⚔️ Pitirim Sorokin vs Paul Allen📋 Browse All Lists📰 Blog Articles🎂 All Birthdays

Frequently Asked Questions

Which geniuses were born on January 21?

Pitirim Sorokin, Paul Allen, Plácido Domingo, Ashton Eaton — 4 geniuses in total share this birthday.

What is the zodiac sign for January 21?

aquarius is the zodiac sign for people born on January 21.

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

Among the 2 geniuses with known IQ scores born on this date, the average estimated IQ is 168.

Discover history's greatest minds — biographies, IQ scores, quotes, and more.

Explore All 1,100+ Geniuses →

Trending Comparisons

Albert Einstein vs Isaac NewtonLeonardo Da Vinci vs Nikola TeslaMarie Curie vs Stephen HawkingAda Lovelace vs Alan TuringBobby Fischer vs John Von Neumann

Top IQ Rankings

Highest IQ in HistorySmartest People Alive TodayHighest IQ Child ProdigiesGreatest PhysicistsGreatest Mathematicians

Child prodigies

Gregory SmithMacaulay CulkinRay UshikuboWilliam Maillis
Child prodigies →Highest IQ child prodigies →

Play & come back tomorrow

🔥 Daily Genius Challenge · Genius trivia
Which mathematician proved that no consistent system can prove all truths (incompleteness)?
🧠 Which Genius Are You?📊 Free IQ Test