A Navy diver surfaced from a Florida sinkhole holding stone tools dated to 14,500 years ago — a discovery that should not exist. Scientists long insisted humans reached the Americas only about 13,000 years ago, so these artifacts threatened to rewrite the entire timeline.
In 1983, a diver exploring the Aucilla River in Jefferson County, Florida, came across a collection of large bones on the riverbed. The bones belonged to an extinct elephant. The discovery led scientists to a buried sinkhole that contained a well-preserved record of an ancient environment.The site, known as Page-Ladson, was excavated by a team led by paleontologist S. David Webb and archaeologist…