What country served as a hegemon as the world's financial center and strong colonial power throughout the nineteenth century?

Which statement describes a similarity between the great migration and to this day

Why were inventors essential or necessary for an industrial revolution to happen in america

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.