September 21st, 1172

Born on September 21st, 1172

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

Why not celebrate an alternative birthday? In 140 days, exactly on December 13th, 2026, people who were born on September 21st, 1172 will be 312,000 days old!

... in seconds, minutes and hours

What happened on September 21st?

September 21st, 2004

American rock band Green Day released their seventh studio album, American Idiot.

September 21st, 2013

Unidentified gunmen began a three-day attack on the upmarket Westgate shopping mall in Nairobi, Kenya, resulting in the deaths of 67 people with at least another 175 wounded.

September 21st, 2001

Several British Muslim youths in Peterborough, England, murdered 17-year-old Ross Parker, leading to debate over whether the British media failed to cover racially motivated crimes with white victims.

September 21st, 1996

The Defense of Marriage Act was passed by the United States Congress, prohibiting federal recognition of same-sex marriage, while allowing states to adopt any marital definition of their choosing.

September 21st, 1968

The Soviet Union's Zond 5 landed in the Indian Ocean, becoming the first spacecraft to safely return to Earth after travelling around the Moon.

September 21st, 1965

Portugal accepted a diplomatic mission from Southern Rhodesia despite objections by Britain, which had required the colony to implement black majority rule as a condition of independence.

September 21st, 1958

The first section of Interstate 80 in Iowa opened in the Des Moines metropolitan area.

September 21st, 1943

Second World War: The German Army began the Massacre of the Acqui Division on the Greek island of Cephalonia, executing 5,155 Italian soldiers in the next five days.

September 21st, 1938

The Great New England Hurricane made landfall on Long Island, New York, killing an estimated 682 people and injuring 1,754 others.

September 21st, 1937

J. R. R. Tolkien's fantasy children's novel The Hobbit, which later served as a prelude to The Lord of the Rings, was first published.

September 21st, 1934

Chandrashekhar Agashe (pictured) established the Brihan Maharashtra Sugar Syndicate Ltd., one of the oldest companies in India.

September 21st, 1933

Salvador Lutteroth ran the first Empresa Mexicana de la Lucha Libre event, now the world's oldest professional wrestling promotion in existence, in Mexico City.

September 21st, 1918

World War I: The Battle of Nazareth ended with the British Empire victorious over the Ottomans.

September 21st, 1897

In response to a letter written by eight-year-old Virginia O'Hanlon, The New York Sun published an editorial by Francis Pharcellus Church stating, "Yes, Virginia, there is a Santa Claus".

September 21st, 1823

According to Joseph Smith, he was first visited by the Angel Moroni, who would guide him to the golden plates that became the basis of the Book of Mormon.

Public holidays on September 21st

Fixed holidays (Autumnal equinox observances in the Northern Hemisphere, vernal equinox observances in the Southern Hemisphere , Christian feast day) which are celebrated on September 21st.

Date as a Roman numeral / digit

Leap year

Yes: 1172 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 1172