What are some of the internal improvements that the US Congress paid for after the War of
1812?

This "System" consisted of three mutually reinforcing parts: a tariff to protect and promote American industry; a national bank to foster commerce; and federal subsidies for roads, canals, and other "internal improvements" to develop profitable markets for agriculture.

these the citzens and goverment come to terms some of the amendments gave the states more power then the goverment and some protocted americans rights

byzantine empire is the answer i think you are looking for.

hope this : )