It influenced other country's to do the same
More grain was produced elsewhere as well as the fact that increasingly more grain was produced around the same demand of grain.
The correct answer is the declaration of independence.
It was mostly written by Jefferson and it pointed out to all the bad things the king has done against the colonies. These things were called grievances, and the grievances are the reason as to why they are breaking away from the empire in order to establish their own country.
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The transcontinental railroad let the settlers go to the western side of America. With that they needed more farms for food and resources to provide a profit. The settlers did not want to do the work to they forced slaves to work for them. The settlers in the west made slavery increase due to the wanted of profit and the needing to survive.
