Apart from dinosaurs, finds of early human fossils, and their relatives and ancestors called hominids, often grab the public's imagination (see also Famous Fossils, later in this section). Louis Leakey (1903-1972) and wife Mary Leakey (1913-1996) did much to establish East Africa as a centre for hominid evolution. In 1964 Louis and associates proposed the name Homo habilis ('handy person') for remains found associated with simple stone tools at Olduvai Gorge, Tanzania,
from 1960. Mary and her team came upon the famous Laetoli hominid footprints in Tanzania, in 1978. The prints are dated to 3.7 million years ago and show a hominid with a true bipedal gait.