The same way they do now. The poor cursed the rich and the rich cursed the poor.
New York City was the largest city in the nation, with access to several waterways and industrial production.
Yes, it has been a large city since the early 19th century.
No city in the world grew faster than New York City in the 19th century. In the 20th century most of the growth in New York City had flattened out. Seoul, Korea and large US cities cannot be fairly compared unless a question is more focused.
The Five Points neighborhood in Lower Manhattan was one of the worst slums in 19th century New York City. Today, the area is part of Chinatown and the Lower East Side.
The word "Gotham" originated as a nickname for New York City in the 19th century. It was popularized by writer Washington Irving in his satirical magazine, referencing a village of fools in England. The moniker stuck and became synonymous with New York City.
Catholic immigrants.
Panama canal
Rise of domestic and foreign commerce
New York City's Chinatown began in the mid-19th century. Chinese sailors who landed in New York City were denied the right to live amongst white people, and so they formed their own neighborhood. See the Related Links below for more information.
In 19th century New York City, sectarian gang wars accelerated at a pace that was worrisome to say the least. Perhaps the most violence was in the 1850's in New York. The City's Democratic political leadership with its substantial Irish base seemed disinterested in stemming the violence. The police force was corrupt and added to the chaos.
Yes, it was loosely based on Herbert Ashbury's non-fiction account of gang life in New York City in the 19th century, Gangs of New York.
uncle sam