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Atomic Theory B.C.

By 1067829
  • Period: 300 to 500

    Atomic Theory B.C.

    Go from right to left since the timeline is B.C.
  • 350

    Plato

    Plato
    Classified that all things are classified as five geometric shapes, earth, water, air, fire, and cosmos. this was called the platonic theory.
  • 420

    Leucippus

    Leucippus
    He was one of the first to beleive that everything is composed of elements. he also beleived that after a long time, it is impossible to cut anything down to a smaller size.
  • 460

    Democritus

    Democritus
    First proposed the existence of an ultimate particle. Used the word "atomos" to describe this particle.

  • Empedocles

    Empedocles
    First person to state that matter is made up of four elements

  • Aristotle

    Aristotle
    He felt that regardless of the number of times you cut a form of matter in half, you would always have a smaller piece of that matter