When and why was the bridge built of Brooklyn bridge and how did it change new yorkers lives?

Before the Brooklyn Bridge was built, the only way to travel from Brooklyn to Manhattan and back was by ferry. When the bridge was built, people could finally travel quickly and easily, and in large numbers, between the two boroughs.

People could now live in Brooklyn, and commute into Manhattan to work, which wasn't really feasible before, since the ferry system wasn't equipped to carry large numbers of commuters at once.

The Brooklyn Bridge helped unite the city, not just physically, but socially as well. In fact, in 1898, just five years after the bridge was completed, the five boroughs united to form modern-day New York City.