1. The list was released on 6 Feb 2011, to mark the 100th birth anniversary of a former US President, who was included in the list. Which president?
2. Though a list of 25, there are actually 26 people on the list. One entry is a pair of these two medieval leaders. Who are they?
(image: Hulton Archive / Getty Images; Mary Evans Picture Library / Everett Collection and TIME)