Were Eratosthenes and Qin Shi Huang alive at the same time?
Yes. Eratosthenes and Qin Shi Huang were alive at the same time for 48 or 49 years, from 259 BC to 210 BC.
Eratosthenes was 16 or 17 when Qin Shi Huang was born.
Eratosthenes was 65 or 66 when Qin Shi Huang died, aged 48 or 49.
Eratosthenes
Greek mathematician, geographer, poet, astronomer, librarian and music theorist
Born 276 BC · died 194 BC