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The issue of the dispute of the border centered on slavery. Texas could claim what they wanted to claim regarding their borders as long as they were a Republic. The moment they became a part of the Union they were forced to play by a different set of rules. The 1850 Compromise was disliked by both the Southern and Northern legislators but was a temporary solution that avoided the Civil War for a brief period of time.
The Compromise of 1850 was the set of bills that included that requirement. The individual bill was called the Fugitive Slave Act of 1850.
Utah
The leader in Congress who helped to create the Missouri Compromise was Henry Clay. Furthermore, with the support of Daniel Webster, Clay set up the plan for the Compromise of 1850 and the resolution of the Nullification Crisis.
Washington and Idaho
They gained all states above the imaginary line, i dont remember where it was set
Compromise of 1850
The Missouri Compromise of 1820 drew a line in the sand - in the territories acquired from France in the Louisiana Purchase, there would be no new slave-states North of the parallel that marked Missouri's Southern border. After the Mexican war, with another vast new land acquisition, there had to be a new compromise (1850). This one didn't work. It was getting harder to create new slave-states and Congress had to make a big gesture of appeasement to keep the South from breaking away. This was the Fugitive Slave Act, and it set the tone for a decade of mounting tensions, ending in war.
Daniel Webster was an influential Senator who lent his support to the Compromise of 1850 for the sake of the keeping the Union in tact. He was permanently vilified by his peers afterwards.
The Compromise of 1850 was a series of measures adopted by the US Congress on September 9, 1850, prior to the Civil War, to address slavery and territory issues, and to stop secession by the South. Proposed largely by Senator Henry Clay of Kentucky, it included several measures to ensure a balance between free and slave states. It admitted California to the Union as a free state, and from the remaining land acquired in the Mexican War (1846-48), it established Utah and New Mexico as territories with an open status of slavery, a measure that overruled the Missouri Compromise.
a set of rules
The Compromise of 1850, actually a set of 5 compromises