Scientists believe that the first living creatures Fossilized we can call modern humans originated in Africa some 300,000 years ago. For thousands of years, Homo sapiens proliferated around the world but did not reach North America until 13,000 thousand years ago, or that was the ingenuity that existed.
The discovery of human footprints in White Sands National Park in New Mexico has taken that route thousands of years back.
After leaving Africa, people quickly spread across Asia and Europe, defeating our unchanging cousins as Neanderthals. The last snowfall gave our ancestors a way to cross over to North America via the Bearing Land Bridge.
Twenty years ago, everyone accepted the fact that people came to the Americas between the ages of 11,000 and 13,000 because that is where we first saw the tools used by the Clovis people.
This is also where the ice sheets start to fall, opening up opportunities for migration. More recently, evidence points to human settlements even before that, probably 16,000 years ago. The new discovery, however, pushes a day back at least 20,000 years ago during the ice age.
White Sands National Park has plenty of steps for years from the snow. Scientists often find traces of extinct animals such as mammoths, cats with saber teeth, and large sloth lands.
The newly discovered human steps were hidden in several layers of sediment, and it is deceptive to find this kind of make-up.
However, scientists at the University of Arizona took a break when they found the seeds embedded in an ancient bed surrounded by tracks. Radiocarbon dating was able to produce seeds with confidence as 21,000 to 23,000 years old.
