Toward the end of the Acheulian period, a technique developed that enabled toolmakers to produce flake tools of a predetermined size., which was called the method.

Levalloisian

Explanation:

Levalloisian was the method developed during the Acheulian period that enabled the production of flake tools . the Acheulian was an archaeological  stone tool industry that produced tools made of stones across Africa and other parts of the world like Europe, Asia mostly east Asia.

some of the tools produced during the Acheulian period includes multi purpose Axes used for digging the soil, skinning and killing games and also used during warfare. the Acheulian industry was one of the earliest tool making industries. during the times of pre civilization. Acheliuan tools were said to have been produced almost 1300 years ago.

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