Why is it called the Brooklyn Bridge?

Because it communicates the area of ​​Manhattan with Brookling, they are two of the five districts of which New York is formed

It connects Brooklyn to Manhattan. Both are a part of New York City. It was originally called the New York and Brooklyn Bridge and the East River Bridge, but it was later dubbed the Brooklyn Bridge, a name coming from an earlier January 25, 1867 letter to the editor of the Brooklyn Daily Eagle and formally so named by the city government in 1915.

I think is cause it the only bridge that goes in the heart of Brooklyn that why