Ligue 1 is the top professional football league in France, featuring 20 teams that compete annually. Established in 1933, it is known for its competitive nature and has produced many talented players and clubs. The league operates on a system of promotion and relegation with Ligue 2, the second tier of French football. The season typically runs from August to May, with each team playing 38 matches. The team with the most points at the end of the season is crowned the champion. Notable clubs in Ligue 1 include Paris Saint-Germain, Olympique Lyonnais, and Marseille.