Human evolved on earth about threee million years ago
from chimpanjees.However mind that these early four races
never survived till modern times.About four such races has been
identified.However the last one was called the homo sapiens
and second last the Homo erectus.
Till second last all races were confined to Africa or europe,only
the second last visited Asia and the last one inhabited whole
The last race inhabited all the globe however like all other four they
started the journey from Africa about one lac years before.