Clay Tokens
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----- Inscribed Clay Beads -----
Notes:
The clay token was used to keep track of sheep and other livestock in the fourth millenium BC. It was the single most important invention in human history, for two reasons. First, the inscribed symbols on these tokens evolved directly into the Sumerian pictograms, the first writing system. Second, clay tokens made barter by distance possible, from which trade and other economic activities soon developed.
Research points needed for discovery: 10.
No prerequisites.
Needed for: Barter, Pictograms.
Does not enable any new unit types.
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File produced by Xcscribe for Xconq version 7.5pre (July 2004).