There was something good that happened when the Spaniards conquered Mexico. They stopped the carnage of human sacrifices committed by the Aztecs to propitiate their gods as part of their culture for centuries.
IMO, the success of the Conquistadores was mainly due to the cooperation of the tribes who were subjugated and victimized by the Aztec culture. So, karma played a big role in eradicating the evil of sacrificing people to a nonexistent Aztec god. Nonetheless, I'm not condoning the atrocities that were committed by the Conquistadores to the aboriginal peoples.
