Portal:United States/Anniversaries/March/March 30
- 1822 – The Florida Territory is formed under the control of the United States after the East Florida territory and part of the West Florida territory were ceded to the U.S. by the Kingdom of Spain as part of the Adams–Onís Treaty.
- 1842 – Anesthesia is used for the first time in an operation by Dr. Crawford Long.
- 1858 – Hymen Lipman patents a pencil with an attached eraser.
- 1867 – Alaska is purchased for $7.2 million, about 2 cent/acre ($4.19/km²), by United States Secretary of State William H. Seward (pictured). The news media of the day call the transaction Seward's Folly.
- 1870 – Texas is readmitted to the Union following Reconstruction.
- 1981 – President Ronald Reagan is shot in the chest outside a Washington, D.C., hotel by John Hinckley, Jr..
On this day for the United States
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Events
- 1822 - Florida Territory created in the United States.
- 1842 - Anesthesia is used for the first time in an operation by Dr. Crawford Long.
- 1855 - Origins of the American Civil War: Bleeding Kansas - "Border Ruffians" from Missouri invade Kansas and force election of a pro-slavery legislature.
- 1858 - Hymen Lipman patents a pencil with an attached eraser.
- 1867 - Alaska is purchased for $7.2 million, about 2 cent/acre ($4.19/km²), by United States Secretary of State William H. Seward. The news media call this Seward's Folly.
- 1870 - Texas is readmitted to the Union following Reconstruction.
- 1909 - The Queensboro Bridge opens, linking Manhattan & Queens.
- 1910 - Mississippi Legislature founded The University of Southern Mississippi.
- 1951 - Remington Rand delivers the first UNIVAC I computer to the United States Census Bureau.
- 1961 - The Single Convention on Narcotic Drugs is signed at New York.
- 1965 - Vietnam War: A car bomb explodes in front of the U.S. Embassy in Saigon, killing 22 and wounding 183 others.
- 1972 - Vietnam War: The Easter Offensive begins after North Vietnamese forces cross into the Demilitarized Zone (DMZ) of South Vietnam.
- 1981 - President Ronald Reagan is shot in the chest outside a Washington, D.C., hotel by John Hinckley, Jr.
- 1982 - Space Shuttle program: STS-3 Mission completed with the landing of Columbia at White Sands Missile Range, New Mexico.