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PETROGLYPHS
From
Wikipedia: Petroglyphs are
images created by
removing part of a
rock surfaces by
incising, pecking, carving, and abrading. Outside North America, scholars often
use terms such as "carving", "engraving", or other descriptions of technique to
refer to such images. Petroglyphs are found world-wide, and are often (but not
always) associated with
prehistoric peoples. The
word comes from the
Greek words petros
meaning "stone" and glyphein meaning "to carve" (it was originally coined
in
French as pétroglyphe).
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