(ca. 570 – 495 BC)
Pythagoras was one of the most influential mathematicians of the ancient world. And his influence remains alive till this day. As a primordial scientist, what made him tick during his era may seem trivial today. But that is often the case with pathfinders. He is believed to have been educated in Greece, Egypt and Babylon; and is reputed to have had extensive knowledge which was ahead of his time. His spheres of interest were philosophy, mathematics, religion, astronomy, ethics and politics. And he influenced notable minds like: Philolaus, Plato and Euclid. As was customary during his days, science had no defined boundary. Scientists (at that time) were those philosophers who incorporated arithmetic, geometry, astronomy and/or medicine into their curricula. The sage had followers (known as Pythagoreans) with whom he was closely associated. No treatise of these Pythagoreans survived; yet, scholars (right from the ancient times) agree that Pythagoras actually postulated his famous theorem. And this is despite evidence which suggest that the Egyptians, Babylonians and Indians were familiar with the logic behind that theorem long before Pythagoras was born. Notwithstanding, he is credited with tendering its first proof. Pythagoras’ Theorem is still very popular. For over two millennia, it has served as a fundamental staple of plane geometry.