Conversation so far:
What were Louison Bobet's influences?
It was Louison Bobet's uncle, Raymond, who was president of a cycling club in Paris who persuaded him to concentrate on cycling.
When was Louison Bobet born?
Louison Bobet was born on March 12, 1925
In what year was Louison Bobet born?
Louison Bobet was born in 1925
Where did Louison Bobet attend school?

Question: When did Bobet begin his professional career?
Self-contained rewrite: When did Louison Bobet begin his professional career?