Missouri Compromise Day 2027 and 2028: Dates and Days

Last updated: August 19, 2026
DateNameDayWeekDays left
March 2, 2026Missouri Compromise 2026Monday10-
March 2, 2027Missouri Compromise 2027Tuesday9194
March 2, 2028Missouri Compromise 2028Thursday9560
March 2, 2029Missouri Compromise 2029Friday9925
March 2, 2030Missouri Compromise 2030Saturday91290
March 2, 2031Missouri Compromise 2031Sunday91655
March 2, 2032Missouri Compromise 2032Tuesday102021
March 2, 2033Missouri Compromise 2033Wednesday92386
March 2, 2034Missouri Compromise 2034Thursday92751
March 2, 2035Missouri Compromise 2035Friday93116

When Was the Missouri Compromise?

Passed on March 3, 1820, the Missouri Compromise was a pivotal piece of legislation aimed at easing the escalating tensions over slavery in the United States. This landmark compromise was designed to maintain the delicate balance of power between Northern and Southern states.

Historical illustration related to the Missouri Compromise of 1820

Key Provisions of the Missouri Compromise

The Missouri Compromise admitted Maine as a free state and Missouri as a slave state. This measure was crucial in preserving the balance of power in the Senate, where an equal number of free and slave states would prevent any single region from dominating.

Additionally, the Compromise established the 36º 30′ parallel as the boundary line, prohibiting slavery in all new territories north of this latitude, with the exception of Missouri. This provision held until the Compromise was repealed in 1854.

Background and Context

The issue began when Missouri applied for statehood in 1818, seeking to permit slavery. As the first state west of the Mississippi River, Missouri’s decision to allow slavery intensified the national debate on the issue. Northerners, primarily abolitionists, feared that admitting Missouri as a slave state would disrupt the balance between free and slave states. Conversely, Southerners advocated for the right of new states to decide on slavery themselves.

In early 1819, Northern Representative James Tallmadge proposed amendments to restrict slavery in Missouri, which Southern representatives opposed. The Senate, evenly split between free and slave states, faced a critical impasse. To resolve this, Speaker of the House Henry Clay proposed admitting Missouri as a slave state if Maine were admitted as a free state.

In February 1820, the Compromise was formalized, with a bill that admitted Maine and Missouri under the agreed terms. President James Monroe signed the bill into law on March 6, 1820.

Repeal and Legacy

Despite temporarily resolving the slavery issue, the Missouri Compromise did not settle the broader debate over slavery’s future in the United States. The Westward Expansion continued to fuel tensions, leading to the Kansas-Nebraska Act of 1854, which effectively repealed the Missouri Compromise by allowing settlers in new territories to decide on the legality of slavery. This shift led to significant controversy, violent conflicts, and the rise of the Republican Party with Abraham Lincoln.

The Dred Scott v. Sandford Supreme Court case in 1857 further invalidated the Missouri Compromise, ruling that Congress had no authority to prohibit slavery in any state. This decision was a key factor leading to the American Civil War.

Interesting Facts

  • Henry Clay, known as “The Great Compromiser,” played a significant role in brokering the Missouri Compromise.
  • The Compromise was declared unconstitutional in the Dred Scott case.
  • Supporters of slavery in Congress were termed “anti-restrictionists,” while opponents were known as “restrictionists.”
  • The Kansas-Nebraska Act of 1854 nullified the 36º 30′ line established by the Missouri Compromise.

The Missouri Compromise remains a crucial chapter in American history, reflecting the complex and contentious nature of slavery and its impact on the nation’s development.

Frequently Asked Questions

When was the Missouri Compromise passed?

The Missouri Compromise was passed by the United States Congress on March 3, 1820, and signed into law by President James Monroe on March 6, 1820.

What was the purpose of the Missouri Compromise?

The purpose of the Missouri Compromise was to maintain the balance between free states and slave states in the United States. It allowed Missouri to enter the Union as a slave state while admitting Maine as a free state.

Why was the Missouri Compromise important?

The Missouri Compromise was important because it temporarily reduced tensions between Northern and Southern states over the expansion of slavery into new territories. It became a major event in the growing debate that eventually contributed to the Civil War.

Who created the Missouri Compromise?

The Missouri Compromise was developed in Congress through negotiations involving several lawmakers, including Henry Clay, who played a leading role in reaching the agreement.

What did the Missouri Compromise do?

The Missouri Compromise admitted Missouri as a slave state and Maine as a free state. It also prohibited slavery in the remaining Louisiana Territory north of the 36°30′ latitude line, except for Missouri.

How long did the Missouri Compromise last?

The Missouri Compromise remained in effect for more than 30 years until it was effectively repealed by the Kansas–Nebraska Act, which allowed settlers in those territories to decide the issue of slavery through popular sovereignty.

What was the main conflict behind the Missouri Compromise?

The main conflict was the disagreement between Northern and Southern states over whether slavery should expand into new U.S. territories. Each side feared losing political influence as new states joined the Union.

What was the significance of the 36°30′ line?

The 36°30′ line established a boundary for slavery expansion in the Louisiana Territory. Territories north of this line were generally closed to slavery, while Missouri was allowed to enter as an exception.

Did the Missouri Compromise end slavery?

No. The Missouri Compromise did not end slavery in the United States. It only attempted to limit the expansion of slavery and preserve political balance between free and slave states.

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