4 geniuses born on September 9 — including Leo Tolstoy, Luigi Galvani, and more. Explore their biographies, IQ scores, and achievements.
Leo Tolstoy, Luigi Galvani, Cardinal Richelieu, Joseph Leidy — 4 geniuses in total share this birthday.
virgo is the zodiac sign for people born on September 9.
Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.
Take the IQ test →Among the 4 geniuses with known IQ scores born on this date, the average estimated IQ is 166.
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