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Published online by Cambridge University Press: 20 January 2017
It has been known since 1972 that Ponce de Leon discovered Yucatan in 1513. New information confirming this is found in the books of Chilam Balam where the Maya record that the Spanish first arrived in their land at that time. The sundry data indicate that 8 July 1513 (N.S.) falls in Tun 13 of Katun 2 Ahau. This relation provides a new test for correlations of the Maya and Christian calendars. The Goodman-Martinez-Thompson correlation passes the test and the Morley-Spinden correlation fails it.