Landing on the Mexican coast on Good Friday, 1519, Hern n Cort s felt himself the bearer of a divine burden to conquer and convert the first advanced civilization Europeans had yet encountered in the West. For Montezuma, leader of the Mexicans, April 21, 1519 (known in their sophisticated astronomical system as 9 Wind Day) was the precise date of a dire prophesy: the return of Quetzalcoatl, a fearsome god predicted to arrive by ship, from the East,...