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About 700,000 years ago, the first rough hand ax appeared, later refined and used with other tools in the Acheulian industry.

Everyone is a little, she did not eat, she said, previously strange aunt, girls are eutrophic, what the world has ever seen, ...

Wu said some of the officials reported having two houses and some had residences in Beijing or Shanghai., ...

Overview Data engineers build the pipelines and systems that collect, clean, and organize information for analysis.Data scientists use that organized data to un ...