The 13th Tour de France, held between 29 June and 27 July, was the first edition after First World War.
The yellow jersey was introduced during this edition of Tour de France. Most of the cyclists were racing in grey jersey, thus there must have been something, a colorful jersey for example, to distinguish the leader of the general classification from others. Eugéne Christophe was the first cyclist to wear the yellow jersey, being the leader of the general classification after the 10th stage.
The 5560 km long route of Tour de France 1919 was the longest one at that time. (Only the race held in 1926 was longer).
With its 24,056 km/h average speed, the 13th Tour de France was the slowest ever edition. It was only 8 month after the war has ended, and mostly older riders, who had an active career before the war already, participated. Nobody had proper training before the race .
Only 10 cyclists finished the race. This is the lowest number in the history of Tour de France.