Empedocles of Acragas

lived from about 492 BC to about 432 BC

Empedocles was a Greek philosopher who is best known for his belief that all matter was composed of four elements: fire, air, water, and earth. Some have considered him the inventor of rhetoric and the founder of the science of medicine in Italy.

Find out more at:
http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Empedocles.html