Augustus Le Plongeon 
Vestiges of the Mayas [EPUB ebook] 

That the people who inhabited the country at the time of the Spanish conquest had a multiplicity of gods there can be no doubt. The primitive form of worship, with time and by the effect of invasions from outside, had disappeared, and been replaced by that of their great men and women, who were deified and had temples raised to their memory, as we see, for example, in the case of Moo, wife and sister of Chaacmol, whose shrine was built on the high mound on the north side of the large square in the city of Izamal. There pilgrims flocked from all parts of the country to listen to the oracles delivered by the mouth of her priests; and see the goddess come down from the clouds every day, at mid-day, under the form of a resplendent macaw, and light the fire that was to consume the offerings deposited on her altar; even at the time of the conquest, according to the chroniclers, Chaacmol himself seems to have become the god of war, that always appeared in the midst of the battle, fighting on the side of his followers, surrounded with flames. Kukulcan, ‘the culture’ hero of the Mayas, the winged serpent, worshipped by the Mexicans as the god Guetzalcoalt, and by the Quichés as Cucumatz, if not the father himself of Chaacmol, Can, at least one of his ancestors.