Answer:
Explanation: Philadelphia was more stoic than New Amsterdam, as it was a city that had the largest African-American population in the United States, who knew bravely, to recover from the adversity imposed by slavery. Also because in this city, all the ideas of a revolutionary nature were planned, at the head of his illustrious son Benjamin Franklin, since from there it was held, the Continental Congress of the thirteen colonies on three occasions, which served to make will accelerate the independence of the United States from the British regime on July 4, 1776 with the unanimous vote of all the representatives of the thirteen colonies.
It established the United States as a major power in the Western Hemisphere.
Petersburg is really crucial for the victory because it's the main point for the Confederate's supply line.
By winning the war of Petersburg, the union managed to cut off food and ammo supplies for other soldiers in another battlefront which eventually caused the Confederate army to start falling like dominos.