World history hw help?

Question: World history hw help!?

what did the indo-european people do for a living before they migrated!?

AND

why did the indo-europeans develop different languages!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

Languages don't consciously develop, they adapt through many causes such as dialect, or misunderstanding!.
English spoken 500 years ago would barely be understood today and vice versa!.

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