December 9th, 1231

Born on December 9th, 1231

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

Why not celebrate an alternative birthday? In 768 days, exactly on September 1st, 2028, people who were born on December 9th, 1231 will be 291,000 days old!

... in seconds, minutes and hours

What happened on December 9th?

December 9th, 2016

Park Geun-hye, the president of South Korea, was impeached, marking the culmination of the country's political scandal.

December 9th, 2008

Rod Blagojevich, the governor of Illinois, was arrested on corruption charges, including for attempting to sell the U.S. Senate seat being vacated by president-elect Barack Obama.

December 9th, 1981

Mumia Abu-Jamal was arrested for the murder of Philadelphia police officer Daniel Faulkner; his subsequent conviction and death sentence generated controversy in the United States.

December 9th, 1979

A World Health Organization commission of scientists certified the global eradication of smallpox (virus pictured), making it the only human infectious disease to date to have been completely eradicated.

December 9th, 1969

U.S. secretary of state William P. Rogers proposed a plan, later called the Rogers Plan, for a ceasefire in the War of Attrition; Egypt's and Jordan's acceptance of the plan over Palestine Liberation Organization objections led to civil war in Jordan in September 1970.

December 9th, 1968

Douglas Engelbart gave what became known as "The Mother of All Demos", publicly debuting the computer mouse (pictured), hypertext, and the bit-mapped graphical user interface using the computer system NLS.

December 9th, 1965

A large, brilliant fireball was seen by thousands in midwestern North America before landing in Kecksburg, Pennsylvania.

December 9th, 1961

Tanganyika Territory gained independence from Britain before becoming part of Tanzania three years later.

December 9th, 1948

The United Nations General Assembly adopted the Genocide Convention, which defines genocide in legal terms and obligates its signatories to pursue the enforcement of its prohibition.

December 9th, 1940

Second World War: British and Commonwealth forces began Operation Compass, the first major Allied military operation of the Western Desert campaign.

December 9th, 1917

First World War: Hussein al-Husayni, the Ottoman mayor of Jerusalem, surrendered the city to British forces (pictured).

December 9th, 1911

A mine explosion near Briceville, Tennessee, killed 84 miners despite a well-organized rescue effort led by the United States Bureau of Mines.

December 9th, 1905

Legislation establishing state secularism in France was passed by the Chamber of Deputies.

December 9th, 1897

French actress, journalist and leading suffragette Marguerite Durand founded the feminist newspaper La Fronde.

December 9th, 1892

The English association football club Newcastle United was founded by the merger of Newcastle East End and West End.

Public holidays on December 9th

Fixed holidays (Christian feast day) which are celebrated on December 9th.

Date as a Roman numeral / digit

Leap year

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

Calendar
December 1231