Which one for the first thinkers to form Free will in antiquity was also well-known for formulation of an atomic theory of the universe?
Democritus Democritus ( ; Greek: Δημόκριτος , "Dēmókritos", meaning "chosen of the people"; c. 460 – c. 370 BC ) was an influential Ancient Greek pre-Socratic philosopher primarily remembered today for his formulation of an atomic theory of the universe.
Abu al-Abbas Iranshahri Abu al-Abbas Iranshahri (Persian: حکیم ایرانشهری‎ ‎ ) was a 9th-century Persian philosopher, mathematician, natural scientist, historian of religion, astronomer and author. According to traditional sources, he is the first figure in the wider Muslim world to be associated with philosophy after the advent of Islam.