They where big trading cities that many people wanted to control and because of it geographic location it was used as a cultural hearth
According to urban legend, the Pillar of New York holds up Manhattan Island and if that pillar were to break, Manhattan will sink into the Atlantic Ocean. Essentially, it is a giant gyroscope lubricated by an inorganic suspension with a high quotient of lubricity. This lubricant comes from an ethereal spring bubbling up from the Earth's core. Who or what made the Pillar is unknown. It is located somewhere below the sewer system and can only be accessed by a hole covered by special drainage plug.
During one summer, dozens of ghosts gathered at the Pillar of New York and blocked the flow of this lubricant. With the pillar destroyed, chaos would reign supreme. After two weeks, the act of sabotage led to earthquakes. The Ghostbusters decided not to investigate the earthquakes, which they thought were natural at the time. Ray Stantz believed in the old legend and investigated alone. He was cornered by the ghosts but Slimer rushed to tell the other Ghostbusters. They entered the sewers and chased off the ghosts then reopened the pathway. The lubricant flowed to the Pillar and restored it to normal. As luck would have it, the Ghostbusters got paid for stopping the earthquakes.
It gave the Allies the advantage to win the war
Shay's Rebellion highlighted major problems with the Articles of Confederation because State governments had difficulties fixing their economies and raising militias for defense. Shay's Rebellion highlighted the need for a stronger central government to prove for the economic welfare and civil defense of the newly formed United States.
District court,Appeals court, and Supreme Court.