What technological innovation changed the oil industry in the mid-1800s? How did this change encourage the
growth of industry in general?

The north was victorious in the battle of bull run true or false

Which physical feature minimizes population density in northern africa?

What was unification difficult to accomplish in both germany and italy? a.) weaker states we’re attacked by stronger states for control of the emerging nations. b.) major european powers fought to keep independent states under their control. c.) germans and italians did not share common histories and languages.