http://news.bbc.co.uk/1/hi/world/americas/4143968.stm Researchers in the US believe they have come closer to solving a centuries-old mystery - by deciphering knotted string used by the ancient Incas.
Experts say one bunch of knots appears to identify a city, marking the first intelligible word from the extinct South American civilization.
The colored, knotted pieces of string, known as khipu, are believed to have been used for accounting information. <snip>
"We hypothesize that the arrangement of three figure-eight knots at the start of these khipu represented the place identifier, or toponym, Puruchuco," they wrote in their report, published in the journal Science.
"We suggest that any khipu moving within the state administrative system bearing an initial arrangement of three figure-eight knots would have been immediately recognisable to Inca administrators as an account pertaining to the palace of Puruchuco." This probably doesn't quality as "writing" but it was a form of communication -- and the photos I've seen of the knotted cords has always fascinated me.
What would have happened to this civilization if they hadn't been eradicated by the invaded Europeans?
"Columbus Day" is coming up in October -- this should be a day of shame.