Portal:United States/Anniversaries/March/March 6
- 1820 – The Missouri Compromise is signed into law by President James Monroe. The compromise allows Missouri to enter the Union as a slave state, but makes the rest of the northern part of the Louisiana Purchase territory slavery-free.
- 1836 – After a 13-day siege by an army of 3,000 Mexican troops, the 187 Texas volunteers defending the Alamo are defeated and the fort taken, concluding the Battle of the Alamo.
- 1948 – USS Newport News, the first air-conditioned naval ship, is launched from Newport News, Virginia.
- 1951 – The trial of Julius and Ethel Rosenberg (pictured) on the charge of conspiracy to commit espionage begins. Both were executed on June 19, 1953 after bring found guilty of attempting to pass American nuclear secrets to the Soviet Union.
- 1981 – After 19 years presenting the CBS Evening News, Walter Cronkite signs off for the last time.
On this day for the United States
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Events
- 1788 - The First Fleet arrives at Norfolk Island in order to found a convict settlement.
- 1820 - The Missouri Compromise is signed into law by President James Monroe. The compromise allows Missouri to enter the Union as a slave state, but makes the rest of the northern part of the Louisiana Purchase territory slavery-free.
- 1836 - Texas Revolution: Battle of the Alamo - After a 13-day siege by an army of 3,000 Mexican troops, the 187 Texas volunteers defending the Alamo are defeated and the fort taken.
- 1856 - The University of Maryland, College Park is chartered as the Maryland Agricultural College.
- 1857 - The Supreme Court of the United States rules in the Dred Scott v. Sandford case.
- 1899 - Bayer registers aspirin as a trademark.
- 1900 - A coal mine explosion in West Virginia traps 50 coal miners.
- 1946 - Vietnam War: Ho Chi Minh signs an agreement with France which recognizes Vietnam as an autonomous state in the Indochinese Federation and the French Union.
- 1948 - USS Newport News, the first air-conditioned naval ship, is launched from Newport News, Virginia.
- 1951 - The trial of Julius and Ethel Rosenberg begins.
- 1964 - Prophet Elijah Muhammad officially gives Cassius Clay the name Muhammad Ali meaning "beloved of Allah".
- 1970 - Suspected murderer Charles Manson releases Lie: The Love & Terror Cult to help finance his defense.
- 1981 - After 19 years presenting the CBS Evening News, Walter Cronkite signs off for the last time.
- 1983 - The United States Football League begins its first year of competition.
- 1988 - Students at Gallaudet University go on strike in favor of the selection of a deaf university president. The protest is called Deaf President Now.
- 2006 - South Dakota Governor Mike Rounds signs a bill into legislation that would ban most abortions in the state.
- 2007 - Former White House aide I. Lewis Libby, Jr. was found guilty on four of five counts of perjury and obstruction of justice trial.
- 2007 - United States lottery Mega Millions set a new world record for the highest jackpot ever offered of US$390 million.