Archimedes - He is considered one of the great mathematicians and scientists in history. He made many discoveries both in math and physics including many inventions.

Aristarchus - An astronomer and mathematician, Aristarchus was the first to put the sun at the center of the known universe rather than the Earth.

Euclid - The Father of Geometry, Euclid wrote a book called Elements, likely the the most famous mathematical textbook in history.

Hippocrates - A scientist of medicine, Hippocrates is called the Father of Western Medicine. Doctors still take the Hippocratic Oath today.

Pythagoras - A scientist and philosopher, he came up with the Pythagorean Theorem still used today in much of geometry.