The Olympics were held, after the completion of four years during the month of July or August. The time inbetween two Olympic Games was called an Olympiad. In the beginning the games lasted only one day and comprised of only one event, the running of one Stadion, but gradually more events were added resulting, towards the 5th century B.C., in the games lasting for 5 days.
In total the Olympic Games consisted of 10 events: running, the pentathlon, jumping, discus, "ekebolon" javelin, wrestling, boxing, the pancration, chariot racing, and horse racing.
All Greeks who were free citizens and had not committed murder or heresy, had the right to take part in the Olympic Games. Women were not entitled to take part, except as owners in the horse races, while being strictly prohibited from watching the games.