January 23rd, 1156

Born on January 23rd, 1156

Age in days, weeks and months
Wow, over 317,000 days old!

Why not celebrate an alternative birthday? In 54 days, exactly on September 18th, 2026, people who were born on January 23rd, 1156 will be 318,000 days old!

... in seconds, minutes and hours

What happened on January 23rd?

January 23rd, 2003

The final signal was detected from the NASA space probe Pioneer 10, then about 12 billion kilometres (7.5 billion miles) from Earth.

January 23rd, 1846

Ahmad Bey declared the legal abolition of slavery in Tunisia.

January 23rd, 1571

Queen Elizabeth I opened the Royal Exchange in London, giving it its royal title.

January 23rd, 1368

The Hongwu Emperor (pictured) ascended the throne, initiating the Ming dynasty, which would rule China for three centuries.

January 23rd, 2002

American journalist Daniel Pearl was kidnapped and later murdered by al-Qaeda agents in Karachi, Pakistan.

January 23rd, 1997

Madeleine Albright was sworn in as the first female United States Secretary of State, becoming the highest-ranking woman in the history of the U.S. government at that time.

January 23rd, 1993

The first version of Mosaic, created by Marc Andreessen and Eric Bina, was released, becoming the first popular web browser.

January 23rd, 1968

USS Pueblo was seized by North Korean forces, who claimed that it had violated their territorial waters while spying.

January 23rd, 1967

The English new town of Milton Keynes was founded in Buckinghamshire, incorporating four towns and fifteen villages as well as planned new developments on intervening farmland.

January 23rd, 1957

American inventor Fred Morrison sold the rights to his "flying disc" to the Wham-O toy company, who later renamed it the "Frisbee"

January 23rd, 1942

World War II: Japan began an invasion of the island of New Britain in the Australian Territory of New Guinea.

January 23rd, 1915

Rebels led by John Chilembwe attacked local plantation owners, beginning an uprising regarded as a key moment in the history of Malawi.

January 23rd, 1909

Two men committed an armed robbery in Tottenham, London, and led police on a two-hour chase, partially by tram, that ended in the perpetrators' suicides.

January 23rd, 1902

In the most fatal recorded mountaineering accident, 199 of the 210 members of an Imperial Japanese Army unit perished in a blizzard on the Hakkōda Mountains.

January 23rd, 1870

American Indian Wars: In the Marias Massacre, the United States Army killed about 200 Piegan Blackfeet, mostly women, children, and the elderly.

Public holidays on January 23rd

Fixed holidays (Christian feast day) which are celebrated on January 23rd.

Date as a Roman numeral / digit

Leap year

Yes: 1156 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
January 1156