By: History.com Editors

1820

Congress passes the Missouri Compromise

History.com Editors

Published: February 09, 2010

Last Updated: January 31, 2025

After months of bitter debate, Congress passes the Missouri Compromise, a bill that temporarily resolves the first serious political clash between slavery and antislavery interests in U.S. history.

Missouri Compromise

Learn more about the Missouri Compromise of 1820, a temporary solution to the brewing controversy over slavery in the United States.

In February 1819, Representative James Tallmadge of New York introduced a bill that would admit Missouri into the Union as a state where slavery was prohibited. At the time, there were 11 free states and 10 slave states. Southern congressmen feared that the entrance of Missouri as a free state would upset the balance of power between North and South, as the North far outdistanced the South in population, and thus, U.S. representatives. Opponents to the bill also questioned the congressional precedent of prohibiting the expansion of slavery into a territory where slave status was favored.

Even after Alabama was granted statehood in December 1819 with no prohibition on its practice of slavery, Congress remained deadlocked on the issue of Missouri. Finally, a compromise was reached. On March 3, 1820, Congress passed a bill granting Missouri statehood as a slave state under the condition that slavery was to be forever prohibited in the rest of the Louisiana Purchase north of the 36th parallel, which runs approximately along the southern border of Missouri. In addition, Maine, formerly part of Massachusetts, was admitted as a free state, thus preserving the balance between Northern and Southern senators.

The Missouri Compromise, although criticized by many on both sides of the slavery debate, succeeded in keeping the Union together for more than 30 years. In 1854, it was repealed by the Kansas-Nebraska Act, which dictated that slave or free status was to be decided by popular vote in the territories of Kansas and Nebraska; though both were north of the 36th parallel.

Timeline

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1845

Congress overrides presidential veto for first time

On March 3, 1845, Congress reins in President John Tyler’s zealous use of the presidential veto, overriding it with the necessary two-thirds vote. This marked Congress’ first use of the Constitutional provision allowing Congressional veto overrides and represented Congress’ parting gift to Tyler as he left office.

1863

Congress passes Civil War Conscription Act

During the Civil War, the U.S. Congress passes a conscription act that produces the first wartime draft of U.S. citizens in American history. The act called for registration of all males between the ages of 20 and 45, including aliens with the intention of becoming citizens, by April 1. Exemptions from the draft could be bought for $300 or by finding a substitute draftee. This clause led to bloody draft riots in New York City, where protesters were outraged that exemptions were effectively granted only to the wealthiest U.S. citizens.

1865

Freedmen’s Bureau created

On March 3, 1865, President Abraham Lincoln signs a bill creating the Bureau of Refugees, Freedmen, and Abandoned Lands. Known as the Freedmen’s Bureau, this federal agency oversaw the difficult transition of African Americans from slavery to freedom.

1875

First indoor game of ice hockey ends in brawl

On March 3, 1875, indoor ice hockey makes its public debut in Montreal, Quebec. And in what some may consider a predictive moment, the match ended in a bit of a melee.

1877

Rutherford B. Hayes is inaugurated in a private ceremony

On March 3, 1877, Rutherford B. Hayes is sworn in as the 19th president of the United States in the Red Room of the White House. Two days later, Hayes was again inaugurated in a public ceremony.

1879

United States Geological Survey created

Congress establishes the United States Geological Survey, an organization that played a pivotal role in the exploration and development of the West.

1887

Helen Keller meets Anne Sullivan, her teacher and ‘miracle worker’

On March 3, 1887, Anne Sullivan begins teaching six-year-old Helen Keller, who lost her sight and hearing after a severe illness at the age of 19 months. Under Sullivan’s tutelage, including her pioneering “touch teaching” techniques, Keller flourished, eventually graduating from college and becoming an international lecturer and activist. Sullivan, later dubbed “the miracle worker,” remained Keller’s interpreter and constant companion until the older woman’s death in 1936.

Helen Keller Gestures Toward Anne Sullivan

1915

“Birth of a Nation” opens in New York

Director D.W. Griffith’s controversial Civil War epic The Birth of a Nation opens in New York City on March 3, 1915, a few weeks after its West Coast premiere in Los Angeles. A 40-piece orchestra accompanied the silent film. The movie, at 2 hours and 40 minutes, was unusually long for its day and used revolutionary—for the time—filmmaking techniques, including editing, multiple camera angles and close-ups. However, the film, originally entitled The Clansman, was denounced by the NAACP, among others, for its negative portrayal of African Americans.

1918

Treaty of Brest-Litovsk concluded

On March 3, 1918, in the city of Brest-Litovsk, located in modern-day Belarus near the Polish border, Russia signs a treaty with the Central Powers ending its participation in World War I.

1931

“The Star-Spangled Banner” becomes official U.S. national anthem

President Herbert Hoover signs a congressional act making “The Star-Spangled Banner” the official national anthem of the United States.

1945

Finland declares war on Germany

Finland, under increasing pressure from both the United States and the Soviet Union, finally declares war on its former partner, Germany.

1952

Supreme Court rules on communist teachers

In handing down a 6-3 decision in the case Adler v. Board of Education of City of New York, the U.S. Supreme Court upholds a New York state law that prohibits communists from teaching in public schools. Coming at the height of the Red Scare in the United States, the Supreme Court decision was additional evidence that many Americans were concerned about possible subversive communist activity in their country.

1965

US jets bomb Ho Chi Minh Trail

On March 3, 1965, more than 30 U.S. Air Force jets struck targets along the Ho Chi Minh Trail in Laos. This was just one part of several American ground and air strikes against villages and roads along the Ho Chi Minh Trail.

1974

Faulty door dooms plane

A DC-10 jet crashes into a forest outside of Paris, France, killing all 346 people on board, on March 3, 1974. The poor design of the plane, as well as negligent maintenance, contributed to the disaster.

1991

LAPD officers beat Rodney King on camera

At 12:45 a.m. on March 3, 1991, robbery parolee Rodney G. King stops his car after leading police on a nearly 8-mile pursuit through the streets of Los Angeles, California. The chase began after King, who was intoxicated, was caught speeding on a freeway by a California Highway Patrol cruiser but refused to pull over. Los Angeles Police Department (LAPD) cruisers and a police helicopter joined the pursuit, and when King was finally stopped by Hansen Dam Park, several police cars descended on his white Hyundai.

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Citation Information

Article title
Congress passes the Missouri Compromise
Website Name
History
Date Accessed
March 22, 2025
Publisher
A&E Television Networks
Last Updated
January 31, 2025
Original Published Date
February 09, 2010

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