Humans 80,000 Years Older Than Previously Thought?
The tools were uncovered in the 1970s at the archaeological site of Gademotta, in the Ethiopian Rift Valley. But it was not until this year that new dating techniques revealed the tools to be far older than the oldest known Homo sapien bones, which are around 195,000 years old.
Using argon-argon dating—a technique that compares different isotopes of the element argon—researchers determined that the volcanic ash layers entombing the tools at Gademotta date back at least 276,000 years.
comments powered by Disqus
- David Rosand, an Art History Scholar Whose Heart Was in Venice, Dies at 75
- NYT interviews Rick Perlstein about his book
- OAH issues a statement in support of the AP standards
- Daniel Pipes says in interview that the absence of anti-Israel protests in Muslim countries is highly significant
- A historian who studies China has discovered an overlooked angle in the debate about the Middle East. Could he have figured out a key reason for Iraq’s failure to defeat ISIS?