presentation of learning face age progression

The term Bronze Age is used to describe the period that followed the Stone Age, as well as to describe cultures that had developed techniques and technologies for working copper alloys (bronze: originally copper and arsenic, later copper and tin) into tools, supplanting stone in many uses.

In Western Asia, this occurred by about 3,000 BC, when bronze became widespread. Though some simple metalworking of malleable metals, particularly the use of gold and copper for purposes of ornamentation, was known in the Stone Age, it is the melting and smelting of copper that marks the end of the Stone Age. The period lasted for roughly 3.4 million years and ended between 4,000 BC and 2,000 BC, with the advent of metalworking. The Stone Age was a broad prehistoric period during which stone was widely used to make stone tools with an edge, a point, or a percussion surface. Mesolithic Microliths, Bow and Arrows, Canoes Tahunian Heavy Neolithic Shepherd Neolithic Trihedral Neolithic Pre-Pottery Neolithicĭomestication Khiamian culture Pottery Neolithic Pottery Later Stone Age Behavioral modernity, Atlatl, Middle Stone Age Homo neanderthalensis Homo sapiens Recent African origin of modern humans Upper Paleolithic Homo Control of fire Stone tools Middle Paleolithic 3600–2500 BC, some of the world's oldest free-standing structures The Stone Age

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Presentation of learning face age progression