The Olympics began over 2,700 years ago in ancient Greece as part of a religious festival honoring the Greek gods Zeus and Hera. Only men competed in events like wrestling, running, and chariot racing. Though the ancient Olympics ended, the modern Olympic Games were revived in 1894 and have been held every four years since, with athletes from around the world competing in various sports events under the symbol of the five interlocking rings representing the five inhabited continents.