Discovery of the Atom Timeline Project

By abrarmohamed
  • 490 BCE

    Democritus

    Democritus
    Democritus was born at Abdera, in about 460 BCE, although according to some 490. He was one of the two founders of ancient atomist theory. Democritus thought that a point would be reached where matter could not be cut into still smaller pieces. He called these "uncuttable" pieces atomos; where the modern term atom comes from.