September 9th, 1173

Born on September 9th, 1173

Age in days, weeks and months
Wow, over 311,000 days old!

Why not celebrate an alternative birthday? In 528 days, exactly on December 1st, 2027, people who were born on September 9th, 1173 will be 312,000 days old!

... in seconds, minutes and hours

What happened on September 9th?

September 9th, 2010

A natural-gas pipeline in San Bruno, California, exploded and "shot a fireball more than 1,000 feet (300 m) in the air", killing eight people.

September 9th, 1999

The first banknotes of the Portrait Series of the Singapore dollar were introduced by the Board of Commissioners of Currency.

September 9th, 1971

Imagine, the second solo album by John Lennon (pictured), was released.

September 9th, 1969

Allegheny Airlines Flight 853 collided in mid-air with a Piper PA-28 Cherokee flown by a student pilot near Fairland, Indiana, killing all 83 occupants of and destroying both aircraft.

September 9th, 1939

World War II: About 3,000 Polish Army troops began a nearly month-long defence of the Hel Peninsula during the German invasion of Poland.

September 9th, 1892

At the Lick Observatory in California, Edward Emerson Barnard discovered Amalthea (pictured), a moon of Jupiter and the last natural satellite to be discovered by visual observation.

September 9th, 1796

French Revolutionary Wars: A naval engagement between French and British fleets off the coast of Sumatra ended inconclusively.

September 9th, 1791

The commissioners overseeing the construction of the United States' new capital city named it Washington, D.C., in honor of the first president.

September 9th, 1493

Ottoman wars in Europe: A large Croatian army intercepted Ottoman forces returning to the Sanjak of Bosnia, but was defeated.

September 9th, 1320

Byzantine forces defeated Achaean troops at the Battle of Saint George, taking control of the Arcadia region of Greece.

September 9th, 0337

After disposing of all relatives who possibly held a claim to the throne, Constantine II, Constantius II and Constans became Roman co-emperors.

September 9th, 2009

Germanic Wars: An alliance of Germanic tribes led by Arminius engaged Roman forces at the Battle of the Teutoburg Forest, defeating three legions within a few days.

September 9th, 1962

French president Charles de Gaulle delivered his "speech to the German youth" to 20,000 people in the courtyard of Ludwigsburg Palace (pictured).

September 9th, 2015

Elizabeth II (pictured) became the longest-reigning monarch of the United Kingdom, surpassing Queen Victoria.

September 9th, 1957

U.S. president Dwight D. Eisenhower signed the Civil Rights Act of 1957, the first civil rights bill since Reconstruction.

Public holidays on September 9th

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

Date as a Roman numeral / digit

Leap year

No: With 365 days 1173 is a normal year and no leap year.

Calendar
September 1173