All states which are long distance from each other are trading with each other.
Some of them produce goods needed for other states which are too far of them.
That trading economy were rising in the 1800s.
The correct answer for your question is Europe
Among the purged there were experts in industry, economics, engineering, and many of their most talented writers and thinkers. The victims included most of the nations military leaders and half of its military officers.
Kingâs death further encouraged Black Power movement support and riots
The battle of Antietam led to the Emancipation proclamation.