Definition of the Stone Age noun from the Oxford Advanced Learner's Dictionary

 

the Stone Age

 noun
noun
BrE
 
; NAmE
 
[singular]
 
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the very early period of human history when tools and weapons were made of stone (figurative) My dad's taste in music is from the Stone Age (= very old-fashioned). CultureStone Age BritainThe earliest archaeological remains (= parts of buildings, tools, bones, etc. that come from a very early period of history) found in Britain are tools thought to have been made before 12000 BC, when Britain was still attached to the rest of Europe. At a site at Boxgrove in Sussex the earliest human remains, thought to be 500 000 years old, were discovered in the 1990s. Before that the earliest human bones found in Britain were those of a woman from Swanscombe, Kent, who lived about 325 000 years ago. In 1912 a skull (= the bones of a head) that had characteristics of both humans and apes had been found in a gravel pit in Sussex. This became known as Piltdown man. From geological evidence it was calculated that the skull belonged to somebody who lived more than two million years ago. Later scientific tests showed that it was not genuine and that the jaw of an ape had been attached with glue to a human skull and then treated to make it look very old.Most Stone Age remains in Britain are much later and date from after 4000 BC, the Neolithic period. There is evidence of woodland (= land covered with trees) being cleared for farming, and polished stone axes (= tools for chopping wood, etc.) and fragments (= small broken pieces) of pottery have been found. The remains of a Stone Age village built about 3100 BC can be seen at Skara Brae in the Orkneys. The houses were buried in sand after a storm in about 2000 BC and only found when another storm in 1850 blew the sand away.Other Stone Age remains include long barrows, piles of earth up to 300 feet long, found mainly in England and Wales. They were used as burial mounds and sometimes have several rooms inside containing human and animal remains and pottery. Henges, circular areas surrounded by a ditch (= a long, narrow channel) and a bank, may have been built as meeting places. One of the most impressive is at Avebury. It is large enough to contain the modern village of Avebury. A stone circle made of upright megaliths (= very large stones) up to 20 feet/6 metres high was added inside the henge in about 2400 BC, at the end of the Stone Age. The henge at Britain's best-known prehistoric monument, Stonehenge on Salisbury Plain, also dates from the Stone Age, though the circles of huge stones inside it date from about 2100 BC, the beginning of the Bronze Age.
See the Oxford Advanced American Dictionary entry: the Stone Age