acheulean culture in a sentence

1. The earliest recorded use of " E . ferox " was found in Acheulean culture 790-750, 000 years ago.
2. Surprisingly, the findings contradicted the once widely held theory that human ancestors picked up and left Africa soon after they invented better stone axes and other tools of what archaeologists call the Acheulean culture.
3. Archaeologists have suggested that the finds in the lowest layers of the cave are of a pre-Acheulean culture, one of the world's oldest ( 730, 00-1, 500, 000 years ) and in many ways similar to the Olduwan culture in Tanzania's Olduvai Gorge and the culture which produced the famous Lascaux cave in southeastern France.
4. It's difficult to find acheulean culture in a sentence.