The Olympic Games were first held in ancient Greece, specifically in Olympia, in 776 BC. These games were originally part of a religious festival honoring Zeus and were held every four years. Athletes from various Greek city-states competed in various events, including running, wrestling, and chariot racing. The ancient Olympics were significant not only for their athletic competition but also for promoting unity and peace among rival cities. The modern Olympic Games, revived in the late 19th century, continue to celebrate this rich heritage, bringing nations together in athletic achievement.