Sacrifice, up to and including human sacrifice, is a common practice of most world traditional religions. Mesoamericans had a large dose of various forms of self-sacrifice and ritualized human sacrifice. That said, the Aztecs did ramp it up to 11 as a form of political propaganda ("look at how powerful we are, by how many people who captured"). This makes it difficult to estimate how much sacrifice they actually did, since most of the accounts are probably exaggerated to an unknown degree.