Independence Hall got its name because it was the site where the Declaration of Independence was signed in 1776. Before that it had been known as the State House, and before that Province-hall of Pennsylvania. Built of brick between 1730-1748, it received a wooden tower and steeple between 1750-1753. The building's original wings and arcades were removed between 1813-1815 and replaced with office wings. They were demolished between 1896-1898. Additional restorations took place during the 1920's, 1950's, and 1960's. The latter were under the direction of the National Park Service.