August 12th, 1451

Born on August 12th, 1451

Age in days, weeks and months
Wow, over 209,000 days old!

Why not celebrate an alternative birthday? In 2 days, exactly on July 28th, 2026, people who were born on August 12th, 1451 will be 210,000 days old!

... in seconds, minutes and hours

What happened on August 12th?

August 12th, 2016

The state-owned Taedonggang Brewing Company inaugurated the first beer festival in North Korea.

August 12th, 2000

Kursk, an Oscar-class submarine of the Russian Navy, suffered an on-board explosion and sank in the Barents Sea during a military exercise, killing 118 people.

August 12th, 1990

Near Faith, South Dakota, American paleontologist Sue Hendrickson found one of the most complete Tyrannosaurus rex skeletons, nicknamed Sue (pictured).

August 12th, 1985

Japan Air Lines Flight 123 (aircraft involved pictured) crashed into Mount Takamagahara in Gunma Prefecture, killing 520 of 524 people on board, including singer Kyu Sakamoto, in the world's worst single-aircraft aviation disaster.

August 12th, 1969

The Troubles: Riots erupted in the neighbourhood of Bogside in Derry, and spread across much of Northern Ireland.

August 12th, 1952

Thirteen Jewish poets were executed in Moscow for espionage based on false confessions.

August 12th, 1945

An official administrative history of the Manhattan Project, written by American physicist Henry DeWolf Smyth, was released to the public days after the atomic bombings of Hiroshima and Nagasaki.

August 12th, 1944

World War II: In Sant'Anna di Stazzema, Italy, the Waffen-SS and the Brigate Nere murdered about 560 local villagers and refugees and burned their bodies.

August 12th, 1914

World War I: Belgian troops won a victory at the Battle of Halen, but were ultimately unable to stop the German invasion of Belgium.

August 12th, 1883

The last known quagga (example pictured), a subspecies of the plains zebra, died at Natura Artis Magistra, a zoo in Amsterdam.

August 12th, 1881

Franco-American children as young as seven years old began striking against Cabot Mill in Brunswick, Maine, shutting down operations for three days.

August 12th, 1099

Crusades: Fatimid forces under al-Afdal Shahanshah began retreating to Egypt after the Battle of Ascalon, concluding the First Crusade.

August 12th, 1323

The Treaty of Nöteborg between Sweden and Novgorod Republic is signed, regulating the border between the two countries for the first time.

August 12th, 1164

Battle of Harim: Nur ad-Din Zangi defeats the Crusader armies of the County of Tripoli and the Principality of Antioch.

August 12th, 1121

Battle of Didgori: The Georgian army under King David IV wins a decisive victory over the famous Seljuk commander Ilghazi.

Public holidays on August 12th

Fixed holidays (Christian feast day) which are celebrated on August 12th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1451 is a normal year and no leap year.

Calendar
August 1451