December 10th, 1421

Born on December 10th, 1421

Age in days, weeks and months
Wow, over 220,000 days old!

Why not celebrate an alternative birthday? In 198 days, exactly on January 7th, 2027, people who were born on December 10th, 1421 will be 221,000 days old!

... in seconds, minutes and hours

What happened on December 10th?

December 10th, 1901

On the fifth anniversary of the death of their founder, Swedish chemist and industrialist Alfred Nobel, the first Nobel Prizes were awarded in Stockholm.

December 10th, 1898

The Spanish–American War ended with the signing of the Treaty of Paris, with Spain recognizing the independence of Cuba and ceding Guam, the Philippines, and Puerto Rico to the United States.

December 10th, 1884

Adventures of Huckleberry Finn (Finn depicted) by American author Mark Twain was first published in the United Kingdom and Canada, two months earlier than in the US.

December 10th, 1861

Militia forces led by Nguyễn Trung Trực, an anti-colonial leader in southern Vietnam, sank the French lorcha L'Esperance.

December 10th, 1847

"Il Canto degli Italiani", the Italian national anthem since 1946, made its public debut in Genoa.

December 10th, 1768

The first edition of the Encyclopædia Britannica was released in Edinburgh.

December 10th, 1684

Edmond Halley presented the paper De motu corporum in gyrum, containing Isaac Newton's derivation of Kepler's laws from his theory of gravity, to the Royal Society.

December 10th, 1508

The Papal States, France, Aragon and the Holy Roman Empire formed the League of Cambrai, an alliance against the Republic of Venice.

December 10th, 1993

The video game Doom, later considered the "father" of the first-person shooter genre, is released.

December 10th, 2021

A tornado strikes an Amazon warehouse during increased holiday demand, killing six sheltering workers.

December 10th, 1967

Soul and blues singer, Otis Redding, along with members of his back-up group, The Bar-Kays, are killed when their helicopter crashes in Lake Monona in Madison, Wisconsin.

December 10th, 1890

The New York World Building, the then-tallest building in the United States at a height of 110 meters, was completed in New York City.

December 10th, 1992

Sheikh Zayed bin Sultan Al Nahyan establishes the Marriage Fund in the United Arab Emirates in response to rising wedding prices.

December 10th, 1848

Louis-Napoleon Bonaparte won France's first presidential election, and was elected as the first and only president of the French Second Republic.

December 10th, 1989

At the first open pro-democracy demonstration in Mongolia, journalist Tsakhiagiin Elbegdorj announced the formation of the Mongolian Democratic Union, which would be instrumental in ending communist rule four months later.

Public holidays on December 10th

Fixed holidays (Christian feast day) which are celebrated on December 10th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1421 is a normal year and no leap year.

Calendar
December 1421