The last edition of Tour de France before the World War II broke out was in 1939, which was followed by an eight year long hiatus. Next time the international peloton (without German and Italian riders) came together to participate in the most famous cycling race of the world was during the summer of 1947.
The first etap was a 236 km long plain stage between Paris and Lille, which was won by the Swiss rider (later, in 1950 a Tour de France winner himself) Ferdy Kübler.