Fourth Doctor - Thomas Stewart "Tom" Baker (born 20 January 1934) is an English actor. He is best known for his role as the fourth incarnation of the Doctor in the science fiction television series Doctor Who, which he played from 1974 to 1981.
Example of Nilo-Saharan rock art. Early Holocene (c. 9th mill. BCE). Images of buffalo, giraffe, elephant in earlier images- this later image includes round-head style and preoccupation with hunter-gatherer activities. Shows evidence of repopulation of Sahara after the Younger Dryas.