Pythagoras was an influential ancient Greek philosopher and mathematician, best known for his contributions to mathematics, particularly in geometry. Born around 570 BCE on the island of Samos, Pythagoras founded a religious movement known as Pythagoreanism, which combined philosophical teachings with spiritual beliefs. His followers believed in the importance of numbers and their relationships, leading to significant advancements in mathematics and science. Pythagoras is often credited with the Pythagorean theorem, which describes the relationship between the sides of a right triangle. This theorem has wide applications in various fields, including architecture, engineering, and physics. Pythagorean thought also extended beyond mathematics; it influenced philosophy, music, and astronomy, emphasizing harmony and proportion in the cosmos. Despite the impact of Pythagoras's teachings, much of what is known about him comes from later accounts, making it difficult to separate fact from legend. His emphasis on the mystical properties of numbers and the universe fostered a lasting legacy in Western thought, paving the way for future mathematicians and philosophers. Pythagoras was a notable figure in ancient Greek thought, combining mathematics with philosophy. He founded a community that explored the deeper meaning of numbers and their significance in the universe. While the facts of his life are murky, his influence on science and philosophy endures to this day.