Where Was the Oldest Man Made Construction on Earth Found?
Olduvai Gorge is a 350-foot-deep canyon in Tanzania that has been the source of some of the oldest human remains ever discovered. In 1961, the archaeologists Louis and Mary Leakey found there a jawbone, skull, and other bones thought to belong to a manlike creature who lived around 1.7 million years ago! At Olduvai Gorge, the ar