QR codes are used today to provide information on numerous things. While this technology is considered to be something relatively new, perhaps it is not, perhaps the ancient Maya could have used the QR code on the statue's face to send a message?
Found items on the ruins of the ancient Maya in Mexico were almost completely donated to museums in Mexico. A statue is now being discovered that appears to suggest that the ancient Maya used the form of the QR code used today and put this on the face of the statue. Many people have said that this could be proof that aliens were on Earth many years ago during the Mayan times.
The statue is not typical of the Mayan period in the shape of its head. The face does not look like the face of a person or an animal. Instead, the head has the flat shape of a modern tablet. The tablet is labeled similar to the QR code that is used today and is scanned by smartphones to transmit information.
The code on the head can be a warning for posterity
People tried to scan this message with smartphones and did not get any results. Perhaps the technology needed to read the code hasn't been invented yet?