The three major migration of
African-Americans during the current distribution in the US are the following:
1.
Forced relocation from
Africa slavery
2.
Great Migrations from the
south to the north before and after WW I and WW II to slog in the factories
3.
<span>Development of the ghettos
to neighbouring areas during the 1950s and 1960s.</span>
All of the above. Explanation: all of those are true and most hunters and farmers still rely on astronomy