Pythagoras born in 569BC and passed away around 500-475BC. Famous Mathematician, Physician Philosopher and the head of Pythagorean school, also the inventor of Pythagorean theorem(A^2+b^2=c^2), he also falls in love with music and believed that both mathematics and music could purify, numbers have personalities, characteristics, strengths and weaknesses, he was well educated and he played the lyre throughout his lifetime, knew poetry and recited Homer. A man who loves mathematician as well as nature and his family, someone said he married to a woman called Theano and had a daughter and a son, but some said he had no wife nor children.