Greece is known for originating the Olympic Games, which were first held in Olympia in 776 BC. These ancient games were dedicated to the Olympian gods and included various athletic competitions among city-states. The Olympics served not only as a sporting event but also as a way to promote peace and unity among the often-warring Greek city-states. The games featured various contests, including running, wrestling, and chariot racing, and victors were highly celebrated. The Olympics were held every four years and laid the foundation for the modern Olympic Games, which continue to unite nations through sports over two millennia later.