The document discusses several economic and political developments in the United States following the War of 1812, including issues with currency and banking, growth of the textile industry, transportation problems and solutions, Henry Clay's American System of tariffs and internal improvements, and westward expansion. Key developments were the chartering of the Second National Bank in 1816, passage of the tariff of 1816 to protect industry, and the beginning of federally-funded roads like the National Road for internal improvements.