What does MPI stand for? MPI stands for Major Periodic Inspection (aviation industry) Suggest new definition This definition appears somewhat frequently and is found in the following Acronym Finder categories:
Scientists agree that our early ancestors, Homo erectus, first appeared in Africa 1â2 million years ago. They spread throughout the world and evolved into ancient humans. Most believe that modern humans evolved in Africa, and gradually replaced all the other ancient humans (the 'Out-of-Africa' theory). Some scientists believe that ancient humans may have evolved into modern humans all over the world at around the same time (the 'multiregional' theory). Either way, by about 30,000 years ago, we â Homo sapiens â were the only humans left on the planet. The 'multiregional' and 'Out-of-Africa' theories.
Modern Human beings evolved in Africa from a variety of hominid species over a few million years. The first humans to leave the African continent were Homo erectus (upright man), who migrated northeast about 2 million years ago when present day deserts were grassland.o when modern humans decided to look west rather than east while pondering their future in a cold Central Asia they would have found Europe already occupied by Homo neanderthalensis, who had separated from the main evolutionary line some 500,000 years ago.