Ancient+Times+450+AD+and+years+prior

Back Was an Ancient Greek philosopher born in northern Greece in (ca) 460 BC. Democritus is credited with helping to form the first atomic theory. He believed that every piece of matter was made up of atoms, which were in constant motion and were indestructible. He was a very profound thinker who made pioneering advances in mathematics and philosophy. He was a world traveler who was held in high regard by the people who knew him. Democritus died in 370 B.C. []
 * [[image:Democritus.jpeg width="238" height="290" caption="Democritus"]] || [[image:solid_sphere width="127" height="127" caption="Democritus' small, spherical, solid, indivisible model."]] ||

Aristotle was a Greek philosopher who was the student of Plato. He lived from 384-322 B.C. Aristotle discovered the idea that different elements had their own unique properties. This was the basis for the classical elements system. Plato said there must be a way of changing one element into another by changing its balance of the qualities of hot, cold, wet, and dry. This concept became very popular and fueled the alchemy movement.

[]

( 429 BC - 347 BC  ) Plato was Aristotle's mentor and was one of the brightest thinkers and philosophers of all time. He is believed to have been the apprentice of Socrates. Plato is not given the credit for the idea of small particles, but he is said to be the one who taught and influenced Aristotle. He believed that there has to exist a particle that is too small for the human to see or feel. He knew that things were made up of something that humans did not understand.

[]