It is believed that the Clovis were the first humans to live in the Americas as early as 15,000 years ago. But now archaeologists have found evidence in a cave in Mexico that humans came here as early as 30,000 years ago — though it remains a mystery to who they are or where they came from. For a century, archaeologists have been discovering stone tools, suggesting that humans date back 11,000 to 13,000 years. Known as the “Clovis Culture,” these people are named after the town where the first artifacts were found in New Mexico.
The Clovis are thought to have crossed the bridge from Siberia to Alaska, which was dry during the Ice Age. Later, as the ice melted, they spread south ward, through what is now Canada, the United States, Mexico, and south America.
But over the past 20 years, more information has begun to pile up, suggesting that humans may have arrived in North and South America earlier. Recent evidence from an archaeological site in Texas suggests it may be 20,000 years old.
And now, the story may have started earlier than this. A new study describes archaeological excavations at the Chiquihuite cave in northern Mexico, where evidence suggests human occupation was held as early as 30,000 years ago.
The sharp stone tools found in the Chiquihuite cave in Mexico date between 25,000 and 30,000 years ago.
During the past 10 years of excavations, scientists have found nearly 2,000 stone tools and fragments. By analyzing the tools and the DNA in the sediments around them, the researchers were able to determine their age between 25,000 and 30,000 years ago.
The team found DNA from a range of plants and animals, including black bears, rodents, bats, field mice and kangaroos. But interestingly, no human DNA was found, suggesting that the owners of these tools did not stay there for long.
“These early tourists didn’t occupy the cave continuously, and we think part of the year is where people use it as a winter or summer shelter, or as a hunting base during migration,” said lead researcher Professor Eske Willerslev of the study. “This is probably the oldest ‘hotel’ in the history of the Americas.”
The team says the discovery is likely to need to rewrite the history of human swells in the Americas. But at the moment, we don’t know much about these early inhabitants.
“We don’t know who they are, where they come from, or where they went,” said Siprian Adelin, co-author of the study. “It’s a complete mystery. By the time the famous Clovis population entered the Americas, early Americans had disappeared thousands of years ago. There may be many failed colonizations that have disappeared from the timeline and have not left genetic traces in today’s population. “
While the new study represents a huge leap forward, it is more acceptable than other, more controversial studies, such as humans arriving in North America 130,000 years ago. In any case, further excavation and analysis should help uncover more puzzles.