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Two 19th century events effectively nullified the 1820 Missouri Compromise, a law which dictated exactly where in the US it would be legal to own slaves.

The first of these events was the Dred Scott v. Sandford federal case of 1857. In what is popularly known as the "Dred Scott Decision," slave Dred Scott attempted to sue for his and his family's freedoms as they had been taken as slaves into free states by their owners. The Supreme Court ruled that African-Americans, whether or not they were slaves, could not be citizens and therefore could not sue in court - effectively negating any protection or power the 1820 Missouri Compromise might have afforded.

After this, the 1854 Kansas-Nebraska Act essentially repealed the earlier Missouri Compromise. This new law allowed settlers of new westen territories to decide if they'd allow the practice in their new land, regardless of whether or not that land was located within the geographic boundaries set by the latter (most did not).

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Q: What is the name of the act that nullified the Missouri Compromise?
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Related questions

What was nullified by the Kansas and Nebraska act?

Missouri Compromise


What law passed through congress nullified The Missouri Compromise of 1820?

The kansas nebraska act ;)


What was nullified due to the kansas-nebraska act?

The Act served to repeal the Missouri Compromise of 1820 which prohibited slavery north of latitude 36°30´.


What was nullified by the Kanasa-Nebraska act?

Compromise of 1850.


What act proposed extending the Missouri Compromise?

The Kansas-Nebraska Act prompted revision of the Missouri Compromise.


Henry clay's compromise became known as what?

The Missouri Compromise The Compromise of 1850 The Kansas-Nebraska Act.


What did the Kansas-Nebraska Act go against?

The Missouri Compromise


Which act violated the Missouri compromise?

the kansas nebraska act, of the compromise of 1850


Did the Kansas Nebraska Act support the Missouri Compromise of 1850?

No. The effect of the Kansas-Nebraska Act (1854) was to supersede (nullify) the Missouri Compromise, rendering it inapplicable to future states. The geographical division was not applied, but rather "popular sovereignty" within a state would decide the issue of slavery there. This resulted in internecine warfare in the states of Kansas and Missouri, and murderous attacks by both sides (abolitionists and pro-slavery).The Missouri Compromise (1820) was never actually repealed per se.


What did the Kansas-Nebraska act repeal?

Missouri Compromise


What Kansas Nebraska Act Flatly contradicted the provision of what compromise?

Missouri Compromise


Who did the Kansas-Nebraska Act repealed with?

Missouri Compromise