February 17th, 1231

Born on February 17th, 1231

Age in days, weeks and months
Wow, over 290,000 days old!

Why not celebrate an alternative birthday? In 473 days, exactly on November 11th, 2027, people who were born on February 17th, 1231 will be 291,000 days old!

... in seconds, minutes and hours

What happened on February 17th?

February 17th, 2011

Arab Spring: Bahraini security forces killed four protesters in a pre-dawn raid at the Pearl Roundabout in Manama, while the "Day of Rage" took place in Libya with nationwide protests against Muammar Gaddafi's government.

February 17th, 1978

The Troubles: The Provisional Irish Republican Army carried out a bombing of a restaurant near Belfast, Northern Ireland, killing twelve people and injuring thirty others.

February 17th, 1974

A U.S. Army soldier stole a Bell UH-1 helicopter (pictured) and landed it on the South Lawn of the White House in Washington, D.C.

February 17th, 1964

Gabonese military officers overthrew President Léon M'ba, but French forces, honouring a 1960 treaty, forcibly reinstated him two days later.

February 17th, 1959

Vanguard 2 (model pictured), the first weather satellite, was launched to measure cloud cover distribution.

February 17th, 1944

World War II: The U.S. Navy began Operation Hailstone, a massive naval air and surface attack against the Japanese naval and air base at Chuuk Lagoon in the Caroline Islands.

February 17th, 1913

The Armory Show (commemorative button pictured), the first large modern-art exhibition in the United States, opened at the 69th Regiment Armory in New York City.

February 17th, 1904

Italian composer Giacomo Puccini's Madama Butterfly premiered at La Scala in Milan to poor reviews, forcing him to revise the opera.

February 17th, 1894

Rudolf Diesel's first working diesel engine ran for one minute.

February 17th, 1859

Cochinchina campaign: French Navy forces captured the Citadel of Saigon, defended by 1,000 Vietnamese soldiers of the Nguyễn dynasty.

February 17th, 1838

Great Trek: Zulu impis massacred about 532 Voortrekkers, Khoekhoe, and Basuto near present-day Weenen, South Africa.

February 17th, 1815

The United States ratifies the Treaty of Ghent – signed in late 1814 – formally ending the War of 1812.

February 17th, 1621

Myles Standish was elected the first commander of the militia of Plymouth Colony.

February 17th, 1966

Aeroflot Flight 065 crashes during take-off from Sheremetyevo International Airport, killing 21.

February 17th, 2016

Military vehicles explode outside a Turkish Armed Forces barracks in Ankara, Turkey, killing at least 29 people and injuring 61 others.

Public holidays on February 17th

Fixed holidays (Christian feast day) which are celebrated on February 17th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1231 is a normal year and no leap year.

Calendar
February 1231