Sascha is a U.K.-based trainee staff writer at Live Science. She holds a bachelor’s degree in biology from the University of Southampton in England and a master’s degree in science communication from Imperial College London. Her work has appeared in The Guardian and the health website Zoe. Besides writing, she enjoys playing tennis, bread-making and browsing second-hand shops for hidden gems.
Archaeological discoveries across the Americas have shaped our understanding of when and how humans first reached the so-called New World. The story told by artifacts unearthed from sites all the way from Alaska to Chile is hotly debated.
Spearpoints discovered in Clovis have come to define a group of people who were long believed to be the first humans to arrive in the Americas, as well as their culture. These distinctive spearpoints were chipped from stone into finger-long projectiles that are now known as"Clovis points" and were found associated with animal bones.
Tools discovered at Swan Point include projectile points made of stone and antlers, fragments of an adze for chopping wood or bone, scrapers for skinning and an awl to pierce animal hides. These objects, together with a mammoth tusk, suggest the site may have been a mammoth ivory workshop at some point in prehistory.
Archaeologists first excavated the caves in the late 1930s, revealing fragments of obsidian and bone tools, animal bones, wooden artifacts and baskets. 6. Monte Verde II, ChileMonte Verde II is one of four excavated areas in the Monte Verde archaeological complex, located near Puerto Montt, in the Los Lagos region of southern Chile. A study published earlier this year dates artifacts and structures unearthed at Monte Verde II to 14,550 years ago.
8. Meadowcroft rock shelters, PennsylvaniaThe Meadowcroft rock shelters are a National Historic Landmark, located in southwestern Pennsylvania, that contain evidence of human occupation dating to 16,000 years ago. Archaeologists have unearthed 100,000 artifacts from the site, which sits just north of Buttermilk Creek. These items include blades, scrapers and a circular core from which stone utensils were struck. They also found thousands of chert pieces — scraps and flakes created during tool production — that are at least 13,500 years old.
11. Cueva del Chiquihuite, MexicoThe Cueva del Chiquihuite, or Chiquihuite Cave, is situated in the desert mountains of north-central Mexico and contains evidence suggesting there were people in North America as early as 31,500 years ago.
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