Battle of Gettysburg (1863)

Canada Day (1867)

First U.S. Zoo Opened (1874)

ZIP Codes Introduced (1963)

Pres. James Garfield Shot (1881)

Amelia Earhart Disappeared (1937)

Civil Rights Act of 1964 (1964)

Compliment Your Mirror Day

Stay Out of the Sun Day

Idaho Admission Day (1890)

U.S. Veterans Administration Created (1930)

Independence Day (1776)

H. D. Thoreau Moved to Walden Pond (1845)

Statue of Liberty Presented (1884)

P. T. Barnum's Birthday (1810)

Larry Doby Signed with Cleveland Indians (1946)

First Cloned Sheep Born (1996)

Republican Party Formed (1854)

Fire at Ringling Brothers Circus Killed 160 (1944)

Pinocchio First Printed (1883)

Hawaii Annexed by U.S. (1898)

Terrorist Bombing in London Killed 52 (2005)

First Public Reading of Declaration of Independence (1776)

Vermont Abolished Slavery (1777)

Nat'l Sugar Cookie Day

Don't Step on a Bee Day

Wyoming Admission Day (1890)

Coca-Cola Classic Returned (1985)

Pres. John Quincy Adams's Birthday (1767)

Babe Ruth Debuted in Major League Baseball (1914)

Patricia Polacco's Birthday (1944)

Etch-a-Sketch Introduced (1960)

First Female Vice-Presidential Candidate Announced (1984)

First World Cup Soccer Tournament (1930)

25-hour Blackout in New York City (1977)

Nazis Became Sole Political Party in Germany (1933)

$100 Bill Became Largest U.S. Currency (1969)

Howard Hughes Set New Speed Record (1938)

World's Tallest Man (8' 11.1") Died (1940)

First International Manned Spaceflight (1975)

District of Columbia Established (1790)

Last Russian Czar Executed (1918)

First Parking Meters (1935)

Saddam Hussein Became President of Iraq (1979)

Potsdam Conference (1945)

Disneyland Opened (1955)

Mein Kampf Published (1925)

Gymnast Nadia Comaneci Scored First Perfect 10 (1976)

Nat'l Ice Cream Day

First Women's Rights Convention Held (1848)

First East to West Rowing of the Atlantic (1969)

Don't Ask, Don't Tell Policy Established (1993)

First Special Olympics (1968)

First Moon Landing (1969)

Ernest Hemingway's Birthday (1899)

Scopes Found Guilty in "Monkey Trial" (1925)

Janet Reno's Birthday (1938)

Pied Piper Arrived in Hamelin (1264)

Pres. Ulysses S. Grant Died (1885)

Pneumatic Tires Invented (1888)

Hale-Bopp Comet Discovered (1995)

Pres. Martin Van Buren Died (1862)

Lance Armstrong Won Seventh Tour de France (2005)

Puerto Rico Became U.S. Commonwealth (1952)

First Test-Tube Baby Born (1978)

Parents' Day

New York Admission Day (1788)

Liberia Became Africa's First Republic (1847)

FBI Created (1908)

Korean War Veterans' Armistice Day

Bugs Bunny Debuted (1940)

Bombing at Olympic Games in Atlanta (1996)

Beatrix Potter's Birthday (1866)

14th Amendment Ratified (1868)

NASA Established (1958)

Prince Charles Married Lady Diana Spencer (1981)

Emily Brontë's Birthday (1818)

Henry Ford's Birthday (1863)

USS Indianapolis Torpedoed, Killing 900 (1945)

In God We Trust Made U.S. Motto (1956)

Columbus Arrived in Trinidad (1498)

Pres. Andrew Johnson Died (1875)

J.K. Rowling's Birthday (1965)