Students stand on a temple at the Zultepec-Tecoaque archeological site in Tlaxcala state, Mexico Thursday, Oct. 8, 2015. New excavations here, the site of one of the Spanish conquistadors' worst defeats in Mexico, are yielding new evidence about what happened when two cultures clashed, and the native Mexicans, at least temporarily, were in control. (AP Photo/Rebecca Blackwell) --------------------------------------------------------------------------------------------------------------------------------------------- It was one of the worst defeats in one of history's most dramatic conquests: Only a year after Hernan Cortes landed in Mexico, hundreds of people in a Spanish-led convey were captured, sacrificed and apparently eaten. Excavations at a site just east...