Paleolithic body paint and perhaps in ritual. Undisputed evidence of art only becomes common in the Upper Paleolithic. Lower Paleolithic Acheulean tool users, according to Robert G. Bednarik, began to engage in symbolic behavior such as art around 850,000 BP. They decorated themselves with beads and collected exotic stones for aesthetic, rather than utilitarian qualities. According to him, traces of the pigment ochre from late Lower Paleolithic Acheulean archaeological sites suggests that Acheulean societies, like later Upper Paleolithic societies, collected and used ochre to create rock art. Nevertheless, it is also possible that the ochre traces found at Lower Paleolithic sites
Zapata (lithograph) However, for the Zapata Palace of Cortés mural, the MoMA mural, and the lithograph, Rivera chose to eliminate the symbolic references to power and status and instead opted to depict Zapata as a campesino. The simple dress separated him from the ruling elite and characterized him as a folk hero. This further idealized Zapata following his assassination in 1919. It was clear to Rivera that there were three ways of seeing Zapata; one as the idealized charro revolutionary, one as the leader of the campesino movement, and finally, as martyr. Both Rivera's lithograph and paintings of Zapata denote that Rivera