It was not quite a cult, more of a society dedicated to mathematics, astronomy, religion, and philosophy, which Pythagoras himself coined.
what pursuits did Pythagoras dedicate his life to
threw him over board
Pythagoras is not a landscape or a place. Pythagoras was a Greek philosopher and mathematician who founded a cult religion called Pythagoreanism in Ancient Greece.
At the same time that Pythagoras was working out his theorem for a right angle triangle he created a religious cult known as the Pythagoreans
a2 + b2 = c2
A cult is a small group of people who follow their own religious beliefs. The leader of the cult is the leader who makes and enforces the rules of the cult.