The traditions of indigenous Mesoamerican literature extend back to the oldest-attested forms of early writing in the Mesoamerican region, which date from around the mid-1st millennium BCE. Many of the pre-Columbian cultures of Mesoamerica are known to have been literate societies, who produced a number of Mesoamerican writing systems of varying degrees of complexity and completeness. Mesoamerican writing systems arose independently from other writing systems in the world, and their development represents one of the very few such origins in the history of writing.