Where and when did human life on earth begin?
About more 50 million years ago.
Anthropoid ( resembling human ) female ( named by anthropologists
as ) Ida in Germany - 50 million years ago (mya).
Ganea Megacanina in Asia - 39 mya.
Hominid ( a subset of hominoid of great apes and humans) Ardi in
Asia - 4.4 mya
Hominin ( modern human ) Lucy in Ethiopia - 3.2 mya.
Reference: p155, 10. Esoteric Science about Universe and Creation,
Faiths and proximate Truths (2010), A.S. Adikesavan