Democritus devises first atomic theory. (jan 1, 400 BC – 23h 59min, dec 31, 400 y BC)
Description:
Democritus theorized that all objects were made of small, solid, indivisible particles.
Added to timeline:
Date:
jan 1, 400 BC
23h 59min, dec 31, 400 y BC
~ 12 months