Human sacrifice is the act of killing a human being as an offering to a deity or other, normally supernatural, power.
It was practiced in many ancient cultures. The practice was different in different cultures. Some like the Mayans and Aztecs are notorious for their ritual killings, others have looked down on the practice as primitive.
Victims were ritually killed in a manner that was supposed to please or appease gods or spirits. Victims ranged from prisoners to infants to Vestal Virgins whose stomach's were cut open, with a dull,stone knife and their hearts were burned.
Over time human sacrifice has become less common around the world, and sacrifices are now very rare. Most religions condemn the practice and present-day laws generally treat it as a criminal matter. Nonetheless it is still occasionally seen today, especially in the least developed areas of the world where traditional beliefs persist.