Compact theory - Regarding the Constitution of the United States of America, the compact theory holds that the nation was formed through a compact agreed upon by all the states, and that the federal government is consequently a creation of the states. Consequently, states should be the final arbiters over whether the federal government had overstepped the limits of its authority as set forth in the compact.
Contract theory - studies how economic actors can and do construct contractual arrangements, generally in the presence of asymmetric information
Kansas–Nebraska Act 1854 - created the territories of Kansas and Nebraska, opened new lands, repealed the Missouri Compromise of 1820, and allowed settlers in those territories to determine if they would allow slavery within their boundaries.
Stephen Arnold Douglas - was an American politician from the western state of Illinois, and was the Northern Democratic Party nominee for President in 1860.
Free Soil Party - was a short-lived political party in the United States active in the 1848 and 1852 presidential elections, and in some state elections.
Bleeding Kansas - was a series of violent events, involving anti-slavery Free-Staters and pro-slavery "Border Ruffian" elements, that took place in the Kansas Territory and the western frontier towns of the U.S. state of Missouri roughly between 1854 and 1858.
Trent Affair - was an international diplomatic incident that occurred during the American Civil War
Battle of Antietam 1862 - fought on September 17, 1862, near Sharpsburg, Maryland, and Antietam Creek, as part of the Maryland Campaign, was the first major battle in the American Civil War to take place on Northern soil.
Battle of Gettysburg 1863 - on June 24, 1863, General Robert E. Lee led his Confederate Army across the Potomac River and headed towards Pennsylvania.
Appomattox Court house is a courthouse in Appomattox, Virginia built in 1892. It is located in the middle of the state