"Breakthrough Discovery: Oldest Human Footprints in North America Date Back 21,500 Years"

New research has confirmed that the oldest human footprints in North America, found in White Sands, New Mexico, are at least 21,500 years old. The dating was performed using radiocarbon dating of seeds and conifer pollen, as well as optically stimulated luminescence dating of quartz. The results provide strong evidence that humans were present in North America during the Last Glacial Maximum, shedding light on the history of human migration and habitation on the continent.