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Leucippus founds Atomism (oct 9, 440 BC – oct 9, 430 BC)

Description:

The ancient Greek atomists theorized that nature consists of two fundamental principles: atom and void. Unlike their modern scientific namesake in atomic theory, philosophical atoms come in an infinite variety of shapes and sizes, each indestructible, immutable and surrounded by a void where they collide with the others or hook together forming a cluster. Clusters of different shapes, arrangements, and positions give rise to the various macroscopic substances in the world.

Added to timeline:

Date:

oct 9, 440 BC
oct 9, 430 BC
~ 10 years