The Greeks started the Olympic games almost 3,000 years ago in 776 BC.
They were held nearly every four years for over a thousand years until they were stopped in 393 AD.
The original Olympics had fewer events than what we have at the modern Olympics today. At the first Olympics there was only a single event. It was called the stadion and was a running race that went the length of the stadium, or around 200 meters.
More events were added over the next several Olympics. These events included more running races of different lengths, wrestling, chariot racing, boxing, and the pentathlon.
Religion played a big part in the games. Eventually the games lasted five days with the first and last day devoted to honoring the gods. One hundred oxen were sacrificed to zeus during the games.
Some of the events had similar names to events we have today, but had way different rules and requirements. Thats some things to know about the Olympic games in Greece.