Why is 3 reasons that Barack Obama was famous?

1) he is the first coloured President of the USA. 2) He is one of the youngest Presidents to have been elected. 3) He acted to close the Guantanamo Bay detention camps within days of his election. ....I'll try to think of some more, although the fellow's only been in office for a few months, so maybe you need to wait a bit to see what his other accomplishments will be!!