Early man in Florida 14,550 years ago

Stone tools and bones from a butchered mastodon, found at the bottom of a river in Florida, are shaking up the known history of humans in the region.
A four-year investigation of the site has firmly concluded that humans lived there and, in particular, made a meal of a mastodon 14,550 years ago.

This is more than a millennium earlier than humans were thought to have settled the south-eastern US.

They reinforce the idea that humans settled the Americas well before the Clovis people arrived about 13,000 years ago. For many years, the Clovis were thought to have been "the first Americans".

... more evidence accumulates that humans arrived thousands of years earlier - perhaps as early as 16,000 years ago, when the last ice age was only beginning to thaw.

(I read somewhere a few years ago that humans may have come to North America from Europe, before those who came from Asia)

http://www.bbc.com/news/science-environment-36286548