22,000 years ago is a LOT earlier than what science agrees to (at this point), but fits given other evidence found but thought to be in error, like Arlington Springs woman, Luzia from Brazil, or the ancient skull found in the Mexico City museum.
I’m still thinking the Solutrean culture from France, the Aboriginals from South East Asia, and a boat/sea farer culture from Japan all beat the Beringians to the Americas.
http://en.wikipedia.org/wiki/Solutrean_hypothesis
http://www.cosmosmagazine.com/news/3774/did-australian-aborigines-reach-america-first
http://news.nationalgeographic.com/news/2003/11/1106_031106_firstamericans.html