{"id":4515,"date":"2025-06-20T09:50:49","date_gmt":"2025-06-20T09:50:49","guid":{"rendered":"https:\/\/scientificworld.org\/?p=4515"},"modified":"2025-06-20T09:51:07","modified_gmt":"2025-06-20T09:51:07","slug":"ancient-footprints-confirm-humans-lived-in-the-americas-23000-years-ago","status":"publish","type":"post","link":"https:\/\/scientificworld.org\/?p=4515","title":{"rendered":"Ancient Footprints Confirm Humans Lived in the Americas 23,000 Years Ago"},"content":{"rendered":"\n<p>A groundbreaking study led by the University of Arizona has confirmed that humans inhabited the Americas as early as 23,000 years ago\u2014upending long-held theories about migration timelines. Published in&nbsp;<a href=\"http:\/\/dx.doi.org\/10.1126\/sciadv.adv4951\"><em>Science Advances<\/em><\/a>, the research supports earlier findings from fossilized footprints at New Mexico\u2019s White Sands National Park, using radiocarbon dating of ancient mud to reinforce the controversial 2021 discovery.<\/p>\n\n\n\n<p>The study, co-authored by archaeologist Vance Holliday, analyzed layers of sediment surrounding 23,000-year-old human footprints excavated at White Sands. These prints, first dated in 2021 using ancient seeds and pollen, faced skepticism over the reliability of plant-based dating methods. The new research addresses those doubts by examining mud deposits in the same area, yielding matching age estimates (20,700\u201322,400 years old) through an independent lab.<\/p>\n\n\n\n<p>Holliday, a professor emeritus with decades of expertise in early American cultures, emphasized the consistency of the data: &#8220;It would be serendipity in the extreme for all these dates to align if they were wrong.&#8221; The footprints, preserved in clay beneath gypsum dunes, were left by hunter-gatherers near an ancient lakebed\u2014a landscape now eroded or buried under vast sand deposits.<\/p>\n\n\n\n<p>Despite the robust evidence, critics question why no artifacts or settlements accompany the footprints. Holliday suggests that transient groups may have carried tools with them, leaving minimal traces. &#8220;Hunter-gatherers wouldn\u2019t casually discard resources in such a resource-scarce environment,&#8221; he explained.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>&#8220;You realize [the footprints] contradict everything you\u2019ve been taught about the peopling of North America,&#8221;<\/em>\u00a0said Jason Windingstad, a co-author and doctoral candidate.<\/li>\n\n\n\n<li><em>&#8220;We have direct data\u2014and a lot of it now,&#8221;<\/em>\u00a0Holliday added, underscoring the study\u2019s rigor.<\/li>\n<\/ul>\n\n\n\n<p>The findings challenge the &#8220;Clovis First&#8221; theory, which placed human arrival in the Americas around 13,000 years ago. With three independent dating methods corroborating the timeline, the study marks a pivotal shift in understanding early human migration. Future research aims to explore broader regions for additional evidence of these ancient populations.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A groundbreaking study led by the University of Arizona has confirmed that humans inhabited the Americas as early as 23,000 years ago\u2014upending long-held theories about migration timelines. Published in&nbsp;Science Advances, the research supports earlier findings from fossilized footprints at New Mexico\u2019s White Sands National Park, using radiocarbon dating of ancient mud to reinforce the controversial [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[1178,2015],"class_list":["post-4515","post","type-post","status-publish","format-standard","hentry","category-archaeology","tag-archaeology","tag-footprints"],"_links":{"self":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/4515","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4515"}],"version-history":[{"count":1,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/4515\/revisions"}],"predecessor-version":[{"id":4516,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/4515\/revisions\/4516"}],"wp:attachment":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}