 The colourful Bonampak murals, for example, dating from 790 AD, and extending over the walls and vaults of three adjacent rooms, show spectacular scenes of nobility, battle and sacrifice, as well as a group of ritual impersonators in the midst of a file of musicians.At San Bartolo, murals dating from 100 BCE relate to the myths of the Maya maize god and the hero twin Hunahpu, and depict a double inthronization; antedating the Classic Period by several centuries, the style is already fully developed, with colours being subtle and muted as compared to those of Bonampak or Calakmul.Outside the Mayan area, in a ward of East-Central Mexican Cacaxtla, murals painted in a predominantly Classic Mayan style, with often stark colors, have been found, such as a savage battle scene extending over 20 meters; two figures of Mayan lords standing on serpents; and an irrigated maize and cacao field visited by the Maya merchant deity.