September 16th, 1280

Born on September 16th, 1280

Age in days, weeks and months
Wow, over 272,000 days old!

Why not celebrate an alternative birthday? In 583 days, exactly on February 28th, 2028, people who were born on September 16th, 1280 will be 273,000 days old!

... in seconds, minutes and hours

What happened on September 16th?

September 16th, 1400

Owain Glyndŵr proclaimed himself Prince of Wales, declaring that he could save the Welsh from English invasions.

September 16th, 1989

During a tour of the United States, Soviet politician Boris Yeltsin visited a grocery store in Texas that had a major impact on his views regarding the Soviet Union's economic system.

September 16th, 2013

A lone gunman fatally shot twelve people and injured three others at the headquarters of the Naval Sea Systems Command in Washington, D.C.

September 16th, 1992

The British pound (coin pictured) was forced out of the European Exchange Rate Mechanism on Black Wednesday and suffered a major devaluation.

September 16th, 1990

Construction of the Northern Xinjiang railway (terminus pictured) was completed between Ürümqi South and Alashankou, linking the railway lines of China and Kazakhstan and adding a sizeable portion to the Eurasian Land Bridge.

September 16th, 1982

A Lebanese militia under the direct command of Elie Hobeika carried out a massacre in the Palestinian refugee camp of Sabra and Shatila, killing at least 460 civilians.

September 16th, 1979

Eight people escaped from East Germany to West Germany in a home-made hot air balloon.

September 16th, 1975

The prototype of the Soviet Mikoyan MiG-31, one of the fastest combat jets in the world, made its maiden flight.

September 16th, 1963

Malaysia was formed as an independent nation from the Federation of Malaya, the Colony of Singapore, the Crown Colony of North Borneo, and the Crown Colony of Sarawak.

September 16th, 1961

The U.S. National Hurricane Research Project sought to weaken Hurricane Esther by seeding it with silver iodide, leading to the establishment of Project Stormfury.

September 16th, 1940

Second World War: Italian forces captured the town of Sidi Barrani, but their invasion of Egypt progressed no further.

September 16th, 1920

A bomb in a horse-drawn wagon exploded in front of 23 Wall Street in New York City, killing 38 people and injuring several hundred others.

September 16th, 1844

Felix Mendelssohn completed the score of his Violin Concerto, his final concerto.

September 16th, 1822

French physicist Augustin-Jean Fresnel, in a "note" read to the Academy of Sciences, reported a direct refraction experiment verifying David Brewster's hypothesis that photoelasticity (as we now call it) is stress-induced birefringence.

September 16th, 1776

American Revolutionary War: American colonists defeated British troops at the Battle of Harlem Heights (depicted) on the island of Manhattan.

Public holidays on September 16th

Fixed holidays (Christian feast day) which are celebrated on September 16th.

Date as a Roman numeral / digit

Leap year

Yes: 1280 is a leap year, therefore has a 29th of February with an additional leap day and a total of 366 days (instead of the usual 365 days in a normal year).

Calendar
September 1280