Answer:
Because they need to watch over the south to make sure they were filling the new laws and to keep slaves free.
Honestly the graph doesn't show anything about technology. the only thing i could think of was something close to technology is factories. the north will have more impact on technology than the south that's only cause north makes more money than the south does to have technology. i hope this helps
Paul Revere, William Dawes,Samuel Prescott
The correct answer is: The warriors seated bull and crazy horse forced the surrender of the American troops led by Colonel Coster, who was killed.
Colonel George Armstrong Coster despite having about 700 men and modern rifles was defeated by an enemy that outnumbered them in number of fighters. Coster was killed along with his two brothers, a brother-in-law and a nephew.
The Indian Army was led by Crazy Horse and Chief Gall with Sitting Bull strategies.