Because it was a union stronghold in the confederate states.
The conditions were usually of natural causes. For example, since homesteaders relied on self-sufficiency and were mostly agricultural throughout history, a homesteader might suffer immeasurably if a drought hit and destroyed all their crops since it was their only source of income. Sometimes however in the United States they could also get raided by bandits or Native Americans since they would be usually settling in new areas towards the western frontier.
They relied on some technological advancements to survive. For example, they used barbed wires and weaponry to fend off unwanted animals or people who would try to harm them. They would also use things like the steel plow to help ensure that their land was better suited for crops. Some also relied on windmills both for power and for things like grinding grains.<span />
1929
The Great Depression was the worst economic downturn in US history. It began in 1929 and did not abate until the end of the 1930s. The stock market crash of October 1929 signaled the beginning of the Great Depression. By 1933, unemployment was at 25 percent and more than 5,000 banks had gone out of business.
Taxation without representation, the colonists were taxed by the British without the Colonists own government being consulted. Another reason was the that the British did not allow the Colonists to move into the newly aquired area of the northwest region(Ohio, Kentucky etc.), because the British promised the area to the Native Americans. And may I note the Colonists actually considered themselves to be British.