Conversation so far:
What year did Marc Márquez start Moto2?
Marc Márquez moved into the Moto2 class for 2011.
Where did Marc Márquez' first Moto2 take place?
Marc Márquez finished 21st in Portugal after moving into the Moto2 class.

Question: What year was the world championship?
Self-contained rewrite: What year was the World Championship for Marc Márquez?