Messier 31, the Andromeda Galaxy: 2.3 Million Light Years
Once we start looking outside our own galaxy, the distances increase from thousands of light years to millions, and a historical perspective on distance and time starts to have a larger impact. When the light we see from M31 started on its way, there were no modern humans. The 2.3 million light year distance to Andromeda coincides with the beginning of the most recent ice age, and the evolution of Australopithecus boisei, a bipedal hominid that followed shortly after Australopithecus afarensis, whom we know through the famous Lucy skeleton discovered in Ethiopia in 1974. Around this time Homo habilis appears as well, and begins to use stone tools.