Who were the ancient civilizations that practiced cannibalism?

Several ancient civilizations practiced cannibalism, including the Aztecs, who are often cited for ritualistic cannibalism involving human sacrifices as offerings to their gods. The Māori of New Zealand also engaged in cannibalism, particularly during tribal warfare. Additionally, some archaeological evidence suggests that certain groups in prehistoric Europe and the Americas may have practiced cannibalism for various reasons, including survival and ritualistic purposes.