Caral, or Caral-Supe, was a large settlement in the Supe Valley, near Supe, Barranca province, Peru, some 200 km north of Lima.
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Gary Urton has suggested that the quipus used a binary system which could record phonological or logographic data.
His name, de Kald or de Caral could refer to, among other places, Calder in Nairnshire or Crail in Fife.
In eastern Guatemala it is found in several mountain ranges, including Sierra de Caral in Izabal and the Sierra del Merendón in Zacapa.
Caral civilization or Caral-Supe civilization are alternative names for the ancient Peruvian Norte Chico civilization.
In 2001, Shady and others published radiocarbon dates from the site of Caral in the Supe Valley of Peru, indicating that monumental corporate architecture, urban settlement, and irrigation agriculture began in the Americas by 4090 years before the present (2627 calibrated years B.C.) to 3640 years before the present (1977 calibrated years B.C.).