Pre-Cloves and the Evidence of People in the Americas

The clovis first hypothesis really became entrenched, partly because there was a series of putative sites that were probably not legitimate. The new evidence of the footprints date back to between 21 and 23 thousand years ago. It pushes back the evidence for the for the oldest presence in the americas by about seven thousand years. And again, it's footprints, no fossils, no tools.