To my knowledge, the origin of our evolution goes back to... 1-5 million years ago. This is... 47 million years ago... that's just, wow!
The origin of our evolution as HUMANS dates back 1-5 million years ago, and that also includes Australopethicines which were the first primates to turn bipedal(from what we have on our fossil record at least), so I guess that pretty much makes them sort of "human". This article refers to
primates in general and their divergence from other mammals, say, rodent's for example. Early primates look a lot like a really big rat with longer extremities.