Battle of Gettysburg (1863)

Canada Day (1867)

First U.S. Zoo Opened (1874)

ZIP Codes Introduced (1963)

Amelia Earhart Disappeared (1937)

Civil Rights Act of 1964

Pres. James Garfield Shot (1881)

Compliment Your Mirror Day

Idaho Admission Day (1890)

Stay Out of the Sun Day

U.S. Veterans Administration Created (1930)

Independence Day (1776)

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

Statue of Liberty Presented (1884)

First Cloned Sheep Born (1996)

Larry Doby Signed with Cleveland Indians (1946)

P. T. Barnum's Birthday (1810)

Fire at Ringling Brothers Circus Killed 160 (1944)

Republican Party Formed (1854)

Hawaii Annexed by U.S. (1898)

Pinocchio First Printed (1883)

Terrorist Bombing in London Killed 52 (2005)

First Public Reading of Declaration of Independence (1776)

Vermont Abolished Slavery (1777)

Don't Step on a Bee Day

Nat'l Sugar Cookie Day

Coca-Cola Classic Returned (1985)

Wyoming Admission Day (1890)

Babe Ruth Debuted in Major League Baseball (1914)

Patricia Polacco's Birthday (1944)

Pres. John Quincy Adams's Birthday (1767)

Etch-a-Sketch Introduced (1960)

First Female Vice-Presidential Candidate Announced (1984)

25-hour Blackout in New York City (1977)

First World Cup Soccer Tournament (1930)

Puzzle Day

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

Nazis Became Sole Political Party in Germany (1933)

First International Manned Spaceflight (1975)

Howard Hughes Set New Speed Record (1938)

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

District of Columbia Established (1790)

First Parking Meters (1935)

Last Russian Czar Executed (1918)

Saddam Hussein Became President of Iraq (1979)

Disneyland Opened (1955)

Potsdam Conference (1945)

Gymnast Nadia Comaneci Scored First Perfect 10 (1976)

Mein Kampf Published (1925)

Nat'l Ice Cream Day

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

First East to West Rowing of the Atlantic (1969)

First Women's Rights Convention Held (1848)

First Moon Landing (1969)

First Special Olympics (1968)

Ernest Hemingway's Birthday (1899)

Janet Reno's Birthday (1938)

Scopes Found Guilty in "Monkey Trial" (1925)

Parents Day

Pied Piper Arrived in Hamelin (1264)

Hale-Bopp Comet Discovered (1995)

Pneumatic Tires Invented (1888)

Pres. Ulysses S. Grant Died (1885)

Lance Armstrong Won Seventh Tour de France (2005)

Pres. Martin Van Buren Died (1862)

First Test-Tube Baby Born (1978)

Puerto Rico Became U.S. Commonwealth (1952)

FBI Created (1908)

Liberia Became Africa's First Republic (1847)

New York Admission Day (1788)

Bombing at Olympic Games in Atlanta (1996)

Bugs Bunny Debuted (1940)

Korean War Veterans' Armistice Day

14th Amendment Ratified (1868)

Beatrix Potter's Birthday (1866)

NASA Established (1958)

Prince Charles Married Lady Diana Spencer (1981)

Emily Brontë's Birthday (1818)

Henry Ford's Birthday (1863)

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

USS Indianapolis Torpedoed, Killing 900 (1945)

Columbus Arrived in Trinidad (1498)

J.K. Rowling's Birthday (1965)

Pres. Andrew Johnson Died (1875)