Editing Harmonic Convergence (section)

==Origins==
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Though Arguelles eventually connected the timing of the Harmonic Convergence with his understanding of the significance of [[Maya calendar|Maya calendrics]], the dates themselves were derived not from [[Maya cosmology]] but from the reconstructed [[Aztec]] prophecies of [[Tony Shearer]] in his 1971 book ''Lord of the Dawn''. According to Shearer's interpretation of the [[Aztec calendar]], the selected date marked the end of twenty-two cycles of 52 years each, or 1,144 years in all. The twenty-two cycles were divided into thirteen "[[heaven]]" cycles, which began in AD 843 and ended in 1519, when the nine "[[hell]]" cycles began, ending 468 years later in 1987. The very beginning of the nine "[[hell]]" cycles was precisely the day that [[Hernán Cortés]] landed in Mexico, April 22, 1519 (coinciding with "1 Reed" on the Aztec/Mayan calendar, the day sacred to Mesoamerican cultural hero Quetzalcoatl). The 9 hell cycles of 52 years each ended precisely on August 16–17, 1987.  Shearer introduced the dates and the prophecy to Arguelles, and he eventually co-opted them and coined Harmonic Convergence to promote the event.