The Mayans were an ancient civilization that flourished in Mesoamerica between 2400 BC and 900 AD. They developed a complex society with distinct social classes and divisions of labor. The Mayans had many religious beliefs and practiced human sacrifice. They were also skilled farmers and builders, constructing ceremonial platforms, decorated palaces, and pyramids that played an important role in their culture and burial practices. The Mayans spoke numerous related languages and developed advanced mathematical and astronomical knowledge.