The Kansas-Nebraska Act becomes law, replacing the Missouri Compromise (of 1820), thus act creating the Kansas Territory and the Nebraska Territory, west of the State of Missouri and the State of Iowa.
The Kansas-Nebraska Act becomes law, replacing the Missouri Compromise (of 1820), which had already been declared unconstitutional by the Supreme Court of the United States. Thus act creating the Kansas Territory and the Nebraska Territory, west of the State of Missouri and the State of Iowa.