Conversation so far:
When did Marc Márquez debut in a world championship?
Born in Cervera, Catalonia, Spain, Marquez made his championship debut on 13 April 2008 at the 125cc 2008 Portuguese Grand Prix at the age of 15 years and 56 days.
Was this a young age to be doing this?
He is the youngest Spanish rider to take a pole position or a podium in a motorcycle racing world championship.
Did he continue racing?
Marquez achieved his first podium on 22 June 2008 at the British Grand Prix.

Question: Did he continue improving?
Self-contained rewrite: Did Marc Marquez continue improving?