The Greek natural philosopher Democritus (460-370 BC) promulgated the atomic theory, which asserted that the universe is composed of two elements: the atoms and the void in which they exist and move. Democritus was born in Abdera, the leading Greek...

Atomic theory and the concept of atoms was well known among the ancient Greeks. The most highly developed theory was that of Democritus of Abdera. Democritus was probably born about 460 b.c. and died about 370 b.c. He is reputed to have written more...

Democritus of Abdera is best known for his atomic theory of the universe, but also made significant contributions to the study of geometry. Not much is known of his life, but rather extensive knowledge remains about his philosophies. He wrote a large...

Democritus's background is uncertain. Many stories of his life are tradition or later inventions. Among the few undisputed facts are his birthplace (Abdera, Thrace) and his teacher (Leucippus). Only fragments of his writings survived, and many of them...

Democritus's background is uncertain. Many stories of his life are tradition or later inventions. Among the few undisputed facts are his birthplace (Abdera, Thrace) and his teacher (Leucippus). Only fragments of his writings survived, and many of them...