may 1, 465 BC - -Democritus was a Greek philosopher who lived from 470-380 B.C, and is considered the father of atomic thought. Democritus claimed that all matter was made of small, indestructible particles called ‘atomos’. This hypothesis was created in 465 B.C
Added to timeline:
Date:
may 1, 465 BC
Now
~ 2493 years ago