Question

The newer industry was invented about 1.4 mya after these early African emigrants left their original homeland for other parts of the old world. This new kit is called the _________. the important change was that the new kit was called a biface and worked on two sides. (hand axe)

Answer 1

The Acheulean tool industry is associated with the production of bifacial tools like the hand axe, which emerged about 1.6 million years ago with Homo erectus and represents a leap in cognitive and technological development.

Step-by-step explanation:

The new tool kit mentioned in the question, which was called a biface and worked on two sides including the hand axe, is known as the Acheulean tool industry. This industry reflects the production of more complex tools by our hominin ancestors, specifically by Homo erectus from approximately 1.6 million to 200,000 years ago. The hand axe is a characteristic Acheulean tool and represents a significant advancement in terms of cognitive ability and motor skills, as it required a more delicate technique than earlier tools. Notably, the Acheulean tools were shaped to fit the hand, providing hominins with a better grip and improving their efficiency in hunting and other daily tasks.

The Acheulean industry marked a notable evolution in stone tool technology following the Oldowan tool industry, which dates back to around 2.5 to 1.5 million years ago. Acheulean tools, such as hand axes and cleavers, were generally bifaces—modified on both sides to create symmetrical tools. These tools were typically created using the soft hammer technique, which involved chipping flint or other hard rocks with a softer material such as bone or wood.