There's pretty overwhelming amounts of evidence that ancestors of the first people of the Americas were from Northeast asia and crossed over near Beringia, thou

There's pretty overwhelming amounts of evidence that ancestors of the first people of the Americas were from Northeast asia and crossed over near Beringia, though it's not clear (yet) whether that crossing was coastal/oceanic or inland Older ideas like the solutrean hypothesis are completely discredited because they're irreconcilable with a lot of distinct lines of well-established evidence.