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Stone Age

Stone Age is a long prehistoric period when humans widely used stone to make tools. It is believed that Stone Age began somewhere around 2.5 million years ago. It moved to another stage due to the development of agriculture, the domestication of certain animals, and the smelting of copper ore to produce metal. It is termed prehistoric since humanity had not yet started writing, which is the traditional start of history.
Stone tools were made from a variety of stones. Wood, bone, shell, antler and other materials were widely used as well. At the end of the period, sediments were used to make pottery.
What are the divisions of Stone Age?
Paleolithic

The Paleolithic is a prehistoric era distinguished by the development of stone tools. It covers the greatest portion of humanity’s time, about 99% of human history, extending from 2.5 or 2.6 million years ago to the introduction of agriculture and the end of the Pleistocene around 10,000 BC. This period can be divided into lower, middle and upper Paleolithic.
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During the Paleolithic age, humans were grouped together in small scale societies such as bands and gained their subsistence from gathering plants and hunting wild animals. The Paleolithic is characterized by the use of knapped stone tools, but humans also used wood and bone tools.
During the end of the Paleolithic specifically the Middle and or Upper Paleolithic, humans began to produce the earliest works of art and engage in religious and spiritual behavior such as burial and ritual.
The climate during the Paleolithic consisted of a set of glacial and interglacial periods in which the climate periodically fluctuated between warm and cool temperatures.
Mesolithic
The period started from the end of the last ice age, 10,000 years ago, to around 6,000 years ago. It was characterized by rising sea levels and a need to adapt to a changing environment and find new food sources. The development of microlith tools began in response to these changes. They permitted more efficient hunting, while more complex settlements. Domestication of the dog as a hunting companion probably dates to this period.
Neolithic

The Neolithic, New Stone Age, was characterized by the adoption of agriculture, the so-called Neolithic Revolution, the development of pottery, polished stone tools and more complex, larger settlements. The first Neolithic cultures started around 7000 BC.
Due to the increased of need to harvest and process plants, ground stone and polished stone artifacts became much more widespread, including tools for grinding, cutting, and chopping. The first large-scale constructions were built, including settlement towers and walls, which mean that there was sufficient resources and co-operation to enable large groups to work on these projects.
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