 It has become associated with Mayanism.The earliest known appearance of the design is in the 16th century Codex Magliabechiano, an Aztec (not Maya) document that is also known for graphic depictions of heart sacrifice drawn by indigenous artists.The design was first reproduced by Zelia Nuttall, who rediscovered the Codex Magliabecchiano in Florence, Italy in 1898, in her 1901 book "The Fundamental Principles of Old and New World Civilizations