William James Sidis — The Youngest Harvard Student
William James Sidis remains the gold standard of child prodigy achievement. Reading at 18 months, fluent in multiple languages by age four, enrolled at Harvard at 11 — his early abilities were documented by contemporaries and newspapers alike. His estimated IQ of 250–300 is the highest ever assigned to any person. Full story: William James Sidis IQ.
Terence Tao — Youngest IMO Gold Medalist
Terence Tao's record as the youngest ever gold medalist at the International Mathematical Olympiad (at age 13, in 1988) is one of the most verified records in mathematics education. He had scored a bronze medal at 10 and a silver at 11 — the only person to medal in three consecutive years starting from age 10. He was solving advanced calculus at two years old, which his parents noticed when they found him teaching an older child arithmetic at a family party.
Unlike many child prodigies, Tao has continued to excel as an adult — winning the Fields Medal and producing transformative research across multiple mathematical fields. His story is the closest we have to a prodigy who fully delivered on early promise.
Garry Kasparov — Chess Prodigy and World Champion
Garry Kasparov of Azerbaijan became the youngest World Chess Champion in history at age 22 in 1985. His chess prodigy career began at age 6 when he solved a chess puzzle in a newspaper that his parents had left uncompleted. He became a candidate master by age 13 and an International Master at 15. His IQ is estimated at around 190.
Kasparov's story illustrates a pattern common to chess prodigies: exceptional pattern recognition and memory emerge very early, domain-specific mastery can be achieved in early adolescence, but full creative maturity — the ability to innovate rather than just execute — typically develops through adulthood.
Alia Sabur — Youngest Professor in History
Alia Sabur of New York holds the Guinness World Record as the youngest professor in history. She graduated from high school at 10, earned a BS from Stony Brook University at 14 (graduating summa cum laude), and was appointed full professor of mathematics at Konkuk University in South Korea at the age of 18. She was awarded the title on February 19, 2008, breaking the record held by William James Sidis.
Her IQ is estimated at around 180. She has stated in interviews that she learned to read at age 8 months and was doing multiplication by 18 months. Unlike Sidis, she has thrived in academic life and continued her career in materials science and nanotechnology.
Sho Yano — MD and PhD Before 22
Sho Yano of Chicago holds one of the most remarkable records in modern academia: he enrolled at the University of Chicago's Pritzker School of Medicine at age 12, and simultaneously pursued his PhD in molecular genetics and cell biology. He received both degrees by age 21 — the youngest person in the University of Chicago's history to earn an MD.
His measured IQ is reported to be around 200. Like Tao, Yano represents the modern pattern of prodigies who are carefully guided through accelerated but structured educational paths — in contrast to Sidis's chaotic and publicly exploited childhood. He now works as a pediatric neurologist.
What These Stories Tell Us
Research by psychologist Ellen Winner, who has studied child prodigies extensively, identifies several consistent features: exceptional working memory, intense domain-specific interest (what she calls "rage to master"), and a high tolerance for solitary practice. Crucially, she distinguishes between child prodigies and creative geniuses — the former excel at mastering existing knowledge; the latter go on to create new knowledge. Not all prodigies become geniuses; not all geniuses were prodigies. 탐색 more at your birthday genius finder.