- September 6, 0394 Battle of the Frigidus: The Christian Roman Emperor Theodosius I defeats and kills the pagan usurper Eugenius and his Frankish magister militum Arbogast.

- September 6, 1522 “The Victoria, one of the surviving ships of Ferdinand Magellan’s expedition, returns to Sanlcar de Barrameda in Spain, becoming the first ship to circumnavigate the world.”
- September 6, 1620 Pilgrims set sail from Plymouth England to the New World
- September 6, 1620 “The Pilgrims sail from Plymouth, England, on the Mayflower to settle in North America.”
- September 6, 1628 “Puritans land at Salem, from Mass Bay Colony, witches soon to settle”
- September 6, 1628 “Puritans settle Salem, which will later become part of Massachusetts Bay Colony.”
- September 6, 1669 The siege of Candia ends with the Venetian fortress surrendering to the Ottomans
- September 6, 1776 “Hurricane hits Guadeloupe, killing more than 6000.”
- September 6, 1781 “The Battle of Groton Heights takes place, resulting a British victory.”
- September 6, 1839 Great fire in NY
- September 6, 1847 “Henry David Thoreau leaves Walden Pond and moves in with Ralph Waldo Emerson and his family in Concord, Massachusetts.”
- September 6, 1848 National Black Convention meets (Cleveland)
- September 6, 1853 Women’s Rights Convention met (NYC)
- September 6, 1862 “Stonewall Jackson occupies Fredrick, Maryland”
- September 6, 1863 “After 59 day siege, confederates evacuate Ft Wagner, SC”
- September 6, 1869 Mine fire kills 179 at Avondale Pennsylvania
- September 6, 1869 The first westbound train arrives in SF
- September 6, 1870 “Louisa Ann Swain of Laramie, Wyoming becomes the first woman in the United States to cast a vote legally after 1807.”
- September 6, 1873 Regular Cable Car service begins on Clay Street
- September 6, 1876 Southern Pacific line from LA to SF completed
- September 6, 1885 Eastern Rumelia declares its union with Bulgaria. The Unification of Bulgaria is accomplished.
- September 6, 1888 “Charles Turner becomes the first bowler to take 250 wickets in an English season a feat since accomplished only by Tom Richardson (twice), J.T. Hearne, Wilfred Rhodes (twice) and Tich Freeman (six times).”
- September 6, 1899 Carnation processes its 1st can of evaporated milk
- September 6, 1901 “Anarchist Leon Czolgosz shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York.”
- September 6, 1901 “US President William McKinley is shot and mortally wounded by an asailant at the Pan-American Exposition in Buffalo, NY. Sep 06,”
- September 6, 1905 Atlanta Life Insurance Company established
- September 6, 1909 “Word received, Adm Peary discovers North Pole 5 months earlier”
- September 6, 1913 The first aircraft to loop the loop (Adolphe P‚goud-France)
- September 6, 1914 Battle of the Marne; Germans prevented from occupying Paris
- September 6, 1920 Detroit station WWJ airs the first pro boxing match to be broadcast on radio.
- September 6, 1923 Publisher Edward P.Dutton dies.
- September 6, 1930 Democratically elected Argentine president Hiplito Yrigoyen is deposed in a military coup.
- September 6, 1939 World War II: South Africa declares war on Germany.
- September 6, 1941 All Jews over age 6 in German territories ordered to wear a star
- September 6, 1941 Jews of Vilna Poland are confined to a ghetto
- September 6, 1943 “””Congressional Limited”” train derails near Frankfort Pa, kills 79″
- September 6, 1944 “World War II: The city of Ypres, Belgium is liberated by allied forces.”
- September 6, 1948 Juliana becomes queen of the Netherlands
- September 6, 1948 Juliana becomes Queen of the Netherlands.
- September 6, 1948 Juliana of the Netherlands is crowned as Queen.