Aug 29, 2022 08:28 PM
(This post was last modified: Aug 29, 2022 08:58 PM by C C.)
https://www.livescience.com/oldest-human...e-americas
EXCERPT: . . . At the north end of Louisiana State University's (LSU) campus sit two grassy mounds, rising in a gentle slope to a height of about 20 feet (6 meters). The mounds are just two of more than 800 similar human-made mounds in Louisiana, built by Indigenous Americans. Although researchers knew they were old, a new study has determined just how old these ancient structures are.
The grassy surface hides layers of ancient clay, dirt and ash. And researchers recently found that the oldest mound is 11,000 years old, making it the oldest human-made structure discovered in either North or South America.
"There's nothing known that is man-made and this old still in existence today in the Americas, except the mounds," study first author Brooks Ellwood, emeritus professor of geology and at LSU, said in a university statement. The research was published in the June issue of Yale University's American Journal of Science... (MORE - missing details)
Last year's video, when still regarded as only 6,000 years old ... https://youtu.be/eGTPMowBkYg
https://www.youtube-nocookie.com/embed/eGTPMowBkYg
EXCERPT: . . . At the north end of Louisiana State University's (LSU) campus sit two grassy mounds, rising in a gentle slope to a height of about 20 feet (6 meters). The mounds are just two of more than 800 similar human-made mounds in Louisiana, built by Indigenous Americans. Although researchers knew they were old, a new study has determined just how old these ancient structures are.
The grassy surface hides layers of ancient clay, dirt and ash. And researchers recently found that the oldest mound is 11,000 years old, making it the oldest human-made structure discovered in either North or South America.
"There's nothing known that is man-made and this old still in existence today in the Americas, except the mounds," study first author Brooks Ellwood, emeritus professor of geology and at LSU, said in a university statement. The research was published in the June issue of Yale University's American Journal of Science... (MORE - missing details)
Last year's video, when still regarded as only 6,000 years old ... https://youtu.be/eGTPMowBkYg