American History in the years 1815 to 1848 Describe at least four historically significant development in the years 1815-1848 that transformed the us ( ex political, economic, social, and or reform , technology, etc) but at least one of the the historically significant development must be slavery ( what it was like , the efforts of abolitionist and southern reactions)
The history of Hispanic representation in Congress is entwined with that of U.S. continental expansion in the 19th century.7 In the decades of rapid westward advance and settlement between the signing of the Adams-Onís Treaty of 1819 and the declaration of the Spanish-American War in 1898, the House nearly doubled in size