which philosopher argued that the basic substance of the universe are indivisible units called atoms
Democritus (/dÉªËmÉkrÉªtÉs/; Greek: Î´Î·Î¼ÏÎºÏÎ¹ÏÎ¿Ï, DÄmÃ³kritos, meaning chosen of the people; c. 460 â c. 370 BC) was an influential Ancient Greek pre-Socratic philosopher primarily remembered today for his formulation of an atomic theory of the universe. Democritus was born in Abdera, Thrace, around 460 BC, although, some thought it was 490 BC.