The 24 Hours of Le Mans (French: 24 Heures du Mans) is the world's oldest active sports car race in endurance racing, held annually since 1923 near the town of Le Mans, France. It is one of the most prestigious automobile races in the world and is often called the "Grand Prix of Endurance and Efficiency".
The first 24 Hours of Le Mans happened on the 26-27 May which went through the public roads. It was originally planned to be a three-year event which would be awarded the Rudge-Whitworth Triennial Cup, with a winner being declared over the three consecutive events which had the frthest distance over three races. André Lagache and René Léonard would take the overall win from the three events with them finishing 279 laps over the three events.
After seven years without an edition and the drivers wanting another 24 Hours event to add to the Spa 24 Hours that was the only endurance event. The circuit was shortened to 13.5 kilometres as a permanent race track to stay away from the suburb of Le Mans. In the first event back from a hiatus, it was Raymond Sommer and Luigi Chinetti who would take it a record distance, before they became the first pair to do it back to back after winning the 1933 edition. Despite the 1936 event running without any of the main factory-backed squads, French and Italian drivers and teams dominated the event until 1939 where the Second World War brought an end to all sport in Europe.