1803 - Ohio became a U.S. state.
1867 - Nebraska became a U.S. state.
1961 - The Peace Corps was established by U.S. President John F. Kennedy.

1836 - Texas became independent of Mexico.
1956 - Morocco became independent.

1845 - Florida became a U.S. state.
1918 - Treaty of Brest-Litovsk signed.

1789 - The United States Constitution officially became the law of the land.
1791 - Vermont became a U.S. state.
1917 - The first woman, Jeannette Rankin, sat in the U.S. House of Representatives.
1933 - The first woman to serve in an American president's cabinet, Frances Perkins, was appointed Secretary of Labor by U.S. President Franklin D. Roosevelt.

1770 - The Boston Massacre takes place in Massachusetts.

1836 - The fall of the Alamo in Texas.
1857 - In its Dred Scott v. Sandford decision, the Supreme Court declares that slaves are not U.S. citizens, and therefore have no standing to sue in federal court.
1957 - The Gold Coast and Togoland are united as Ghana.

1876 - A patent is granted to Alexander Graham Bell for the telephone.
1965 - Civil rights marchers are attacked on the Edmund Pettus Bridge between Selma and Montgomery, Alabama.

1782 - Gnadenhutten, Ohio, massacre of Delaware Indians occurs.
1917 - The start of Russia's February Revolution.
1948 - Religious instruction in public schools is declared unconstitutional by the U.S. Supreme Court.

1796 - The marriage of Josephine de Beauharnais and Napoleon Bonaparte takes place.

1629 - Parliament is dissolved by England'sCharles I.
1848 - The Treaty of Guadalupe Hidalgo is ratified by the U.S. Congress (Mexican-American War).

1941 - The Lend-Lease Bill is signed by U.S. President Franklin D. Roosevelt (World War II).
1990 - Lithuania becomes independent following the break-up of the Soviet Union.
2011 - The Tohoku earthquake and tsunami (東北地方太平洋沖地震, a 9.0-magnitude megathrust earthquake) strike off the coast of Japan at 14:46 JST (05:46 UTC).

1912 - The Girl Scouts of America is founded by Juliette Gordon Low.
1938 - Adolf Hitler's Anschluss unites Austria and Germany.
1947 - The Truman Doctrine is established by U.S. President Harry Truman.

1639 - Cambridge College is renamed Harvard University.

1794 - Eli Whitney is granted a patent for the cotton gin, an important invention in the First Industrial Revolution.

44 B.C.E. - Ancient Rome's Julius Caesar assassinated in the senate house on this, the Ides of March.
1820 - Maine becomes a U.S. state.
1965 - Voting Rights speech before Congress by President Lyndon B. Johnson.

1521 - The Philippines is reached by Spanish explorer Ferdinand Magellan.
1850 - Publication is made of Nathaniel Hawthorne's The Scarlet Letter.
1968 - The My Lai Massacre takes place in Vietnam as part of the Vietnam War.

St. Patrick's Day

466 - Saint Patrick dies in Ireland.
1969 - Israel swears in Golda Meir as prime minister.

1766 - The Stamp Act is repealed by Great Britain.

1931 - Gambling is legalized in Nevada.
2003 - The United States begins a war against Iraq, aided by the United Kingdom and other countries.

First Day of Spring (North America)

1602 - The Dutch East India Company is established.
1852 - Harriet Beecher Stowe's abolitionist novel Uncle Tom's Cabin is published.
1990 - Namibia becomes independent.

1556 - Thomas Cranmer, the Archbishop of Canterbury, is burned at the stake for heresy.

1765 - The Stamp Act is enacted.

1775 - The famous "Give Me Liberty or Give Me Death" speech is given by Patrick Henry.
1919 - Benito Mussolini founds the Fascist party in Italy.

1603 - England's Elizabeth I, known as the "virgin queen," dies.

1634 - Maryland is founded as a colony in North America.
1911 - New York City's Triangle Shirtwaist factory fire draws attention to the lack of safety measures for factory workers in the United States.
1957 - The European Economic Community (EEC) is established.

1971 - East Pakistan becomes independent as Bangladesh.

1958 - Nikita Khrushchev becomes leader of the Soviet Union.

1797- Nathaniel Briggs is granted a patent for his washing machine.
1939 - The Spanish Civil War ends.

1867 - The Dominion of Canada is established through the North America Act.
1973 - The last U.S. troops withdraw from Vietnam.

1842 - Anesthesia is used during surgery for the first time.
1867 - The United States purchased Alaska, a deal known as Seward's folly.
1856 - The Crimean War officially ends with the Treaty of Paris.

1492 - Jews are expelled from Spain during the Reconquista of Ferdinand and Isabella.
1917 - The United States takes control of the Virgin Islands.