I want to know the answer to the following question:
How many millions of years ago had Homo erectus spread throughout Europa and Asia?
All the background I'm provided with is that "However, this is not the first species of homininae: the first species of genus Homo, Homo habilis, are theorized to have evolved in East Africa at least 2 million years ago, and members of this species populated different parts of Africa in a relatively short time.". Is that enough to answer the question?