In the manufacture of stone implements, four fundamental traditions were developed by the Paleolithic ancestors: (1) pebble-tool traditions; (2) bifacial-tool, or hand-ax, traditions; (3) flake-tool traditions; and (4) blade-tool traditions.
https://www.britannica.com/event/Stone-Age
The Stone Age, whose origin coincides with the discovery of the oldest known stone tools, which have been dated to some 3.3 million years ago, is usually divided into three separate periods—Paleolithic Period, Mesolithic Period, and Neolithic Period—based on the degree of sophistication in the fashioning and use of tools.
https://www.britannica.com/event/Stone-Age
Stone Age. The Stone Age was an ancient time when people made tools from stone. Wood, bones, and other materials were also used for tools, but those things don't last as long, so more stone tools are found. Stone (especially a hard kind of stone called flint) was used to cut things.
https://simple.wikipedia.org/wiki/Stone_Age
Determined to avoid another night of driving aimlessly around Torrance in the Blue Torpedo, Joe and Hubbs set out on a quest for fine chicks. Their paths soon cross with Tack, from whom they learn about a pair of foreign radical chicks hanging out near the Frankie Avalon place. Over Joe's objections, Hubbs worms Tack out of the deal, and the pair take a slow ride toward their destiny. Written by Greg Helton <ghelton@airmail.net>.
http://www.imdb.com/title/tt0111293/
Some of the world's oldest free-standing structures. The Stone Age was a broad prehistoric period during which stone was widely used to make implements with an edge, a point, or a percussion surface. The period lasted roughly 3.4 million years, and ended between 8700 BCE and 2000 BCE with the advent of metalworking.
https://en.wikipedia.org/wiki/Stone_Age
Stone Age artifacts include tools used by modern humans and by their predecessor species in the genus Homo, and possibly by the earlier partly contemporaneous genera Australopithecus and Paranthropus.
https://en.wikipedia.org/wiki/Stone_Age
The Stone Age is also divided into three different periods. 1  Paleolithic or Old Stone Age: from the first production of stone artefacts, about 2.5 million years ago, to the end of the last Ice Age, about 9,600 BCE. This is the longest Stone Age period.
http://www.ancient.eu/Stone_Age/
The Stone Age was a time in prehistory when humans made and used stone tools. (Prehistory is the time before people invented writing.) Early humans began using stones as simple tools about 2 million years ago. Humans used mainly stone tools until about 10,000 years ago.
https://www.britannica.com/event/Stone-Age
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The Stone Age is also divided into three different periods. Paleolithic or Old Stone Age: from the first production of stone artefacts, about 2.5 million years ago, to the end of the last Ice Age, about 9,600 BCE. This is the longest Stone Age period. Remove Ads Advertisement.
http://www.ancient.eu/Stone_Age/
the stone age
The Stone Age was a broad prehistoric period during which stone was widely used to make implements with an edge, a point, or a percussion surface.