Seemed pretty specific in the article. Reminded me of that black congressman who said so many slaves were dumped overboard that sharks patrolled those waters for 70 years afterwards.
Not that I don't believe the Aztecs were exactly as described. The vileness potential of human beings has never been sounded.
Often many victims were killed at once. In 1487, according to legend, Aztec priests sacrificed more than 80,000 prisoners of war at the dedication of the reconstructed temple of the sun god in Tenochtitlán.
http://216.239.53.104/search?q=cache:fXrrOBoSVT0J:encarta.msn.com/encyclopedia_761593151/Aztec_Empire.html+AZTECS+KILLED+DEDICATION+SUN&hl=en