ABC reports:
Stone Tablet From Mexico Has Pictograms Nearly 3,000 Years Old
Sept. 14, 2006 — In a pile of debris near Veracruz, Mexico, a road-building crew found a stone block, on which someone had carved seven rows of simple pictures.
Scientists, writing in Friday’s edition of the journal Science, say the pictures are almost certainly words, nearly 3,000 years old.
They were probably carved by members of the Olmec tribe, who dominated Central America at the time.
There’s no guessing yet what the pictograms say, but if the research team is right, this block is the oldest writing ever found in the Western Hemisphere.
Dear Kitty. Some blog 
Ancient writing system said to be found:
Archaeologists report the oldest writing system
known in the New World.
http://www.world-science.net/othernews/060914_writing.htm
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