Zeus was the king of the gods and ruler of Mount Olympus according to Greek mythology. He received the sky as his domain when he and his brothers defeated the Titans. As the leader of the Olympians, Zeus had immense power and authority over the other gods. The ancient Olympic Games began in 776 BC in Olympia, Greece as a religious festival honoring the gods. Only men could originally participate in events like running, wrestling, and chariot racing while nude. The Games grew over time but ended in 394 AD when the Christian Roman Emperor banned the pagan festival.