Question: When was the actor born who played the founder and leader of the Order of the Phoenix in the last six films of the series?
Facts:
Michael Gambon was born on 19 October 1940
Michael Gambon played Albus Dumbledore
Albus Dumbledore is in most of the series
Albus Dumbledore is the founder and leader of the Order of the Phoenix
Answer: 19 October 1940