When did Wall Street become known as a financial district?

Wall Street became known as a financial district in the late 18th century, particularly after the establishment of the New York Stock Exchange in 1817. The area evolved into a hub for banking and trading activities, attracting various financial institutions. Over time, it solidified its reputation as the center of American finance, especially during the 19th and 20th centuries, as businesses and investment firms flocked to the area.