411 REFERENCE · Wikibooks
Free Knowledge Culture Calendar/January 9
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
frameless|right|Quipo media.
Today in 1534 Hernando Pizarro brought the first report on the Quipus to Europe. They probably represent one of the first intricate binary codes known today. In 1583 Christian officials ordered them all to be burned.
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