The Tomb of K‘inich Janaab’ Pakal I in Palenque, Southern Mexico, that inspired José & Lloydine Argüelles to realise their World Thirteen Moon Calendar in 1989

José Argüelles believed that K’inich Janaab’ Pakal was one of the leaders of the “Galactic Mayas” who were ancient astronauts that introduced civilization to the ancient Mayas.