About September 18
September 18, 2025 is the 261st day of the year 2025 in the Gregorian calendar. There are 104 days remaining until the end of this year. The day of the week is Thursday.
You can browse the full year calendar in case you need it.
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Virgo is the sun sign of a person born on this day. Sapphire is the modern birthstone for this month. Agate is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 152 days remaining before the start of the next Chinese New Year.
What Happened On September 18
- 324 –Constantine the Great decisively defeats Licinius in the Battle of Chrysopolis, establishing Constantine’s sole control over the Roman Empire.
- 1180 –Philip Augustus becomes king of France.
- 1679 –New Hampshire becomes a county of the Massachusetts Bay Colony.
- 1812 –The 1812 Fire of Moscow dies down after destroying more than three quarters of the city. Napoleon returns from the Petrovsky Palace to the Moscow Kremlin, spared from the fire.
- 1837 –Tiffany and Co. (first named Tiffany & Young) is founded by Charles Lewis Tiffany and Teddy Young in New York City. The store is called a “stationery and fancy goods emporium”.
- 1895 –Booker T. Washington delivers the “Atlanta Compromise” address.
- 1911 –Russian Premier Peter Stolypin is shot at the Kiev Opera House.
- 1914 –The Irish Home Rule Act becomes law, but is delayed until after World War I.
- 1919 –Fritz Pollard becomes the first African-American to play professional football for a major team, the Akron Pros.
- 1919 –The Netherlands gives women the right to vote.
- 1922 –Hungary is admitted to League of Nations.
- 1928 –Juan de la Cierva makes the first autogyro crossing of the English Channel.
- 1943 –World War II: The Jews of Minsk are massacred at Sobibór.
- 1959 –Vanguard 3 is launched into Earth orbit.
- 1960 –Fidel Castro arrives in New York City as the head of the Cuban delegation to the United Nations.
- 1962 –Burundi, Jamaica, Rwanda and Trinidad and Tobago are admitted to the United Nations.
- 1984 –Joe Kittinger completes the first solo balloon crossing of the Atlantic.
- 1990 –Liechtenstein becomes a member of the United Nations.
- 1997 –United States media magnate Ted Turner donates USD 1 billion to the United Nations.
- 1998 –ICANN is formed.
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