| Holiday name | Holiday location | Holiday type |
|---|---|---|
| Constitution Day | Micronesia | Public Holiday |
| National Clean Up Your Room Day | - | Unofficial (Activity & Action) |
| National Lipid Day | - | Unofficial (Health & Body) |
| National Shrimp Day | - | Unofficial (Food & Drinks) |
| National Receptionists’ Day | - | Unofficial (Work & Occupation) |
| National Third Shift Workers Day | - | Unofficial (Work & Occupation) |
| Mothers' Day | El salvador | National Holiday |
| Mother's Day | Mexico | Observance |
| Confederate Memorial Day | Multiple [Show] | Multiple Types |
| Liberation Day (only Sark) | Guernsey | Common Local Holiday |
| Monarchy Day | Romania | Observance |
Historical Events on May 10
- 1775: A small Colonial militia known as the Green Mountain Boys and led by Ethan Allen and Colonel Benedict Arnold seize Fort Ticonderoga from the British.
- 1775: The Second Continental Congress begins in Philadelphia, Pennsylvania with a delegate from each of the Thirteen Colonies during the American Revolutionary War.
- 1801: The First Barbary War begins when the Barbary Pirates of Tripoli declare war against the U.S.
- 1824: In the city of London in England, the National Gallery officially opens to the general public.
- 1837: Unemployment skyrockets and banks in New York begin to fail during the Panic of 1837 – which begins on this day.
- 1864: Union Colonel Emory Upton leads a ten regiment attack against the Confederate works at the Battle of Spotsylvania during the American Civil War.
- 1865: Union troops capture Confederate President Jefferson Davis near Irwinville, Georgia.
- 1865: Confederate raider William Quantrill is ambushed and mortally wounded by Union soldiers in Kentucky during the American Civil War. Quantrill will eventually die on the 6th of June.
- 1908: In the town of Grafton in West Virginia, Mother’s Day is observed for the first time in the U.S.
- 1922: The U.S annexes the Kingman Reef – an uninhabited triangular reef which is roughly halfway between the Hawaiian Islands and the Samoan Islands in the Northern Pacific Ocean.
- 1924: Edgar Hoover becomes the first Director of the U.S Federal Bureau of Investigation (the FBI). He would remain in that position until his death in 1972.
- 1933: Massive public book burnings are staged by the Nazis.
- 1940: Germany begins bombing raids on British shipping convoys.
- 1940: Germany invades the Netherlands, Luxembourg and Belgium.
- 1940: Winston Churchill is made Prime Minister of the U.K.
Famous Birthdays on May 10
- American actor and assassin of U.S President Abraham Lincoln, John Wilkes Booth is born in 1838.
- German journalist, Chancellor and Nobel Prize laureate, Gustav Stresemann is born in 1878.
- American actor, dancer and singer, Fred Astaire is born in 1899.
- English singer Sid Vicious is born in 1957.
- American rapper and producer, Craig Mack is born in 1971.
