Construction of the Pennsylvania State House, later known as Independence Hall, began in 1732 and was completed in 1753. The building has performed many functions, including being the warehouse for the "memorabilia" of the American Founding and the inspiration for the Christy painting in the first half of the twentieth century. The National Park Service, in 1950, decided to return the building to its original appearance in anticipation of the bicentennial of the signing of Declaration of Independence and the Constitution. These two signings make Independence Hall the most sacred ground in the political history of the United States.