In Sumer the Supreme Being Enlil pushed An and Ki apart to allow creation to continue between them. In the same way and for the same reason, Shu (Air) separated Geb and Nut in Egypt. Kronos separated Gaia and Uranos violently in Greece. The Diegueño in California say it was tobacco that caused Father Sky and Mother Earth to come apart. In Zuni, it is Mother Earth herself who tires of Father Sky’s attentions and pushes him away.