Source: HistoryNet.com
1755: English lexicographer Dr. Samuel Johnson publishes his Dictionary of the English Language.
1858: At the Battle of Azimghur, the Mexicans defeat Spanish loyalists.
1861: President Lincoln mobilizes Federal army.
1865: Abraham Lincoln dies from John Wilkes Booth's assassination bullet.
1871: "Wild Bill" Hickok becomes the marshal of Abilene, Kansas.
1912: With her band playing on the deck, the ocean liner Titanic sinks at 2:27 a.m. in the North Atlantic.
1923: The first sound films shown to a paying audience are exhibited at the Rialto Theater in New York City.
1923: Insulin becomes generally available for people suffering with diabetes.
1945: President Franklin D. Roosevelt is buried on the grounds of his Hyde Park home.
1948: Arab forces are defeated in battle with Israeli forces.
1952: President Harry Truman signs the official Japanese peace treaty.
1955: Ray Kroc starts the McDonald's chain of fast food restaurants.
1959: Cuban leader Fidel Castro begins a U.S. goodwill tour.
1971: North Vietnamese troops ambush a company of Delta Raiders from the 101st Airborne Division near Fire Support Base Bastogne in Vietnam. The American troops are on a rescue mission.
1986: U.S. warplanes attack Libya.