It upset the balance of free and slave states in the US.
Aside from the pay, the reason Texas cowboys re-upped for a cattle drive was for the adventure. Although the drive might be boring at times, with weeks and sometimes months on the trail with nothing to see but dust and flat lands, natural and man-made challenges occurred occasionally. One of the most frightening challenges encountered in a drive was crossing a river. A swift river could carry a man, a horse or a cow. A slow moving river might camouflage quicksand and deep holes both of which were dangerous also.
Jim Crow refers to the Jim Crow laws. The Jim Crow laws made it so blacks could not eat at restaurants with whites, drink from the white water fountain or even use the segregated bathrooms. I would think that the row is the row of seats that the blacks had to sit in
Answer:
over the specific issue of whether the upper Ohio River valley was a part of the British Empire
