Why were the discoveries of hominid footprints and “lucy” important?

This was important because it proved that human  life had  appeared sooner than believed .

Dbecause i feel like that’s the correct answer

Just think, why was it effective? -it appeled to critics because it was written well, that made it noticeable to the public including the white population-it was also recognizable to the african americans because it was about their heritage.-it was powerful just keep finding more points and elaborate on them. message me if you need more