LOL, looking at the linebacker he's married to, I might throw that into question, but Larry Sinclair vouches for it, so I suppose you're within the known facts.
All humor aside, we know:
1) He was born, somewhere.
2) His name is uncertain, due to questions over marriage and adoption.
3) He was raised largely by Mr. Stanley Dunham and Mrs. Madelyn Dunham, as far as what is in evidence.
4) He has a known history in Hawaii, in later childhood.
5) All his formative and college years were filled with various political radicals, including every known family member.
6) He attended various colleges and universities, but records of this have been withheld.
7) He was elected to the Illinois state legislature.
8) He was elected to the US Senate.
9) He was elected President.
What gaps are there in this, as far as what is literally known, with incontrovertible evidence to back it up?
This seems to be a detailed, documented source.
The Obama Timeline: 1961-2008
http://mensnewsdaily.com/2008/10/26/the-obama-timeline-1961-2008/1/