First U.S. Census - Population 3,929,214 (1790)

Colorado Admission Day (1876)

Photo Flashbulb Invented (1930)

MTV Debuted (1981)

Friendship Day

Nat'l Ice Cream Sandwich Day

Declaration of Independence Signed (1776)

Lincoln Penny Issued (1909)

Nat'l Kids Day

Columbus Set Sail (1492)

William Faulkner Stamp Issued (1987)

Man Bicycled Across U.S. (1884)

Louis Armstrong's Birthday (1901)

Nazis Arrested Anne Frank & Family (1944)

Electric Traffic Lights First Installed (1914)

Neil Armstrong's Birthday (1930)

Alfred Tennyson's Birthday (1809)

Alexander Fleming's Birthday (1881)

Atomic Bomb Dropped on Hiroshima (1945)

First Pictures of Earth Taken from Space (1959)

Lynne Cox Swam Bering Strait (1987)

Great Train Robbery Thieves Stole $6M (1963)

First Canadian Turtle Derby (1972)

Nixon Announced Resignation (1974)

International Art Appreciation Day

Jean Piaget's Birthday (1896)

Jesse Owens Won Four Olympic Gold Medals (1936)

Smile Week

Missouri Admission Day (1821)

Smithsonian Institution Opened (1846)

Japanese Internment Survivors Awarded $20K (1988)

Ruth B. Ginsburg Sworn in to Supreme Court (1993)

Martian Moon Phobos Discovered (1677)

Alex Haley's Birthday (1921)

Inmates Arrived at Alcatraz (1934)

Int'l Youth Day

Japanese Plane Crash Killed 520 (1985)

Tyrannosaurus Sue Discovered (1990)

Int'l Left-Hander's Day

Lucy Stone's Birthday (1818)

First Two-Way Satellite Conversation (1948)

Japan Agreed to Surrender (1945)

Largest Blackout in U.S. History (2003)

Julia Child's Birthday (1912)

Panama Canal Opened (1914)

Woodstock Music & Art Fair Opened (1969)

New Solar System Discovered (2001)

Major League Baseball Player Killed by Fastball (1920)

Bathysphere Reached Record Depth (1934)

Davy Crockett's Birthday (1786)

Klondike Gold Rush Began (1896)

Hurricane Camille Killed 248 on Gulf Coast (1968)

First American Child of English Parents Born (1587)

Meriwether Lewis's Birthday (1774)

King Kong Premiered (1933)

Nat'l Aviation Day

Adolf Hitler Elected Fuhrer (1934)

Pres. Benjamin Harrison's Birthday (1833)

Tiger Woods Won Third Major Golf Title of the Year (2000)

Pueblo Indians Took Possession of Santa Fe, NM (1680)

Lincoln-Douglas Debates Began (1858)

Mona Lisa Stolen (1911)

Hawaii Statehood Day (1959)

Nat'l Tooth Fairy Day

Ramadan Begins

Ray Bradbury's Birthday (1920)

E. Annie Proulx's Birthday (1935)

Int'l Day for Remembrance of Slave Trade & Its Abolition

Sacco & Vanzetti Executed Amid Protest (1927)

Mount Vesuvius Erupted (79)

Mexico Gained Independence from Spain (1821)

First Swimmer Crossed the English Channel (1875)

New Orleans Founded by French (1718)

Althea Gibson's Birthday (1927)

Earth Photographed from the Moon (1966)

Women's Equality Day

Charles Lindbergh Died (1974)

Volcanoes & Tsunamis on Krakatoa Island Killed 36,000 (1883)

Lyndon B. Johnson's Birthday (1908)

First Radio Commercial Broadcasted (1922)

MLK Gave "I Have a Dream" Speech (1963)

Barack Obama Became First African-American Presidential Nominee (2008)

Brigham Young Died (1877)

Charlie Parker's Birthday (1920)

Hurricane Katrina Devastated Gulf Coast (2005)

Cleopatra Committed Suicide (30 BC)

Mary Shelley's Birthday (1797)

Thurgood Marshall Confirmed (1967)

Int'l Blog Day

Nat'l Trail Mix Day

Princess Diana Died (1997)