Category
page 1280s BC births

Archimedes
Archimedes of Syracuse ( ; ) was an Ancient Greek mathematician, physicist, engineer, astronomer, and inventor from the city of Syracuse in Sicily. Although few details of his life are known, based on his surviving work, he is considered one of the leading scientists in classical antiquity, and one of the greatest mathematicians of all time. Archimedes anticipated modern calculus and analysis by applying the concept of the infinitesimals and the method of exhaustion to derive and rigorously prove many geometrical theorems, including the area of a circle, the surface area and volume of a sphere

Han Fei
Chinese Legalist, 280–233 BCE
Livius Andronicus
3rd-century BC Greco-Roman dramatist and epic poet
Li Si
Chinese politician of the Qin Dynasty

Ctesibius
thumb|Ctesibius' water clock, as visualized by the 17th-century French architect Claude Perrault

Philo of Byzantium
ancient Greek engineer
Conon of Samos
Greek astronomer and mathematician (c.280–c.220 BC)
Mahinda
Buddhist monk of 3rd century BC
Demetrius the Fair
King of Cyrene
Nicomedes
ancient Greek mathematician
Sphaerus
Sphaerus (, sometimes transliterated as Sphaeros;
Queen Dowager Zhao
concubine; mother of Qin Shi Huang