October 21st, 1646

Born on October 21st, 1646

Age in days, weeks and months
Wow, over 138,000 days old!

Why not celebrate an alternative birthday? In 295 days, exactly on May 17th, 2027, people who were born on October 21st, 1646 will be 139,000 days old!

... in seconds, minutes and hours

What happened on October 21st?

October 21st, 1994

In Seoul, South Korea, 32 people were killed and 17 others injured when a span of the Seongsu Bridge collapsed (pictured).

October 21st, 1978

After reporting contact with an unidentified aircraft, Australian pilot Frederick Valentich disappeared while piloting a Cessna 182L across the Bass Strait to King Island.

October 21st, 1968

At the height of the Japanese university protests, protesters occupied Shinjuku Station in Tokyo and clashed violently with police.

October 21st, 1966

A coal tip fell on the village of Aberfan, Wales, killing 144 people, mostly schoolchildren.

October 21st, 1959

The Solomon R. Guggenheim Museum, designed by American architect Frank Lloyd Wright, opened in New York City.

October 21st, 1944

World War II: The three-week-long Battle of Aachen concluded, making the city the first on German soil to be captured by the Allies.

October 21st, 1941

World War II: German soldiers massacred nearly 2,800 Serbs in Kragujevac in reprisal for insurgent attacks in the district of Gornji Milanovac.

October 21st, 1910

HMS Niobe arrived in Halifax Harbour to become the first large ship of the Royal Canadian Navy.

October 21st, 1867

The first and second of three treaties were signed near Medicine Lodge, Kansas, between the United States federal government and several Native American tribes in the Great Plains, requiring them to relocate to areas in present-day western Oklahoma.

October 21st, 1858

French composer Jacques Offenbach's operetta Orpheus in the Underworld, featuring the music most associated with the can-can (audio featured), was first performed at the Théâtre des Bouffes-Parisiens in Paris.

October 21st, 1854

Florence Nightingale and a staff of 38 nurses and 15 nuns were sent to the Ottoman Empire to help treat wounded British soldiers fighting in the Crimean War.

October 21st, 1345

Hundred Years' War: The English victory at the Battle of Auberoche marked a change in the military balance of power in Aquitaine, with the subsequent collapse of the French position.

October 21st, 1096

First Crusade: At the Battle of Civetot, the Seljuk forces of Kilij Arslan destroyed the army of the People's Crusade as it marched toward Nicaea.

October 21st, 2019

In Canada, the 2019 Canadian federal election ends, resulting in incumbent Prime Minister Justin Trudeau remaining in office, albeit with the Liberal Party in a minority government.

October 21st, 2011

Iraq War: President Barack Obama announces that the withdrawal of United States troops from Iraq will be complete by the end of the year.

Birthdays
... of famous people, actors, celebrities and stars on October 21st

Same year
Born in 1646

70

Gottfried Wilhelm Leibniz

German mathematician and philosopher (1646–1716)

*July 1st, 1646, Leipzig †November 14th, 1716, Hanover

73

John Flamsteed

English astronomer and the first Astronomer Royal

*August 19th, 1646, Denby †December 31st, 1719, Burstow

53

Christian V of Denmark

King of Denmark and Norway (1646-1699)

*April 15th, 1646, Flensburg †August 25th, 1699, Copenhagen

38

Elena Cornaro Piscopia

Venetian philosopher (1646–1684)

*June 5th, 1646, Venice †July 26th, 1684, Padua

62

Jules Hardouin-Mansart

French Baroque architect

*April 16th, 1646, Paris †May 11th, 1708, Marly-le-Roi

68

Antoine Galland

French orientalist, numismatist and translator (1646–1715)

*April 4th, 1646, Rollot †February 17th, 1715, Paris

37

Maria Francisca of Savoy

Queen of Portugal

*June 21st, 1646, Paris †December 27th, 1683, Lisbon

68

Jean du Casse

French admiral and buccaneer

*August 2nd, 1646, Saubusse †June 25th, 1715, Bourbon-l'Archambault

68

Pierre Le Pesant, sieur de Boisguilbert

French law-maker and a Jansenist

*February 17th, 1646, Rouen †October 10th, 1714, Rouen

62

Magnus Daniel Omeis

German author (1646-1708)

*September 6th, 1646, Nuremberg †November 22nd, 1708, Altdorf bei Nürnberg

72

Robert Daniell

American politician

*April 20th, 1646, Cardigan †May 1st, 1718, Daniel Island

45

Frederick I of Saxe-Gotha-Altenburg

First Duke of Saxe-Gotha-Altenburg (1646-1691)

*June 15th, 1646, Gotha †August 2nd, 1691, Friedrichswerth

87

Marguerite Perier

French nun, daughter of Blaise Pascal

*April 6th, 1646, Clermont-Ferrand †April 14th, 1733, Clermont-Ferrand

57

Joseph Parrocel

French painter (1646-1704)

*October 3rd, 1646, Brignoles †March 1st, 1704, Paris

58

Françoise-Marguerite de Sévigné

French salonnière and countess

*October 10th, 1646, Paris †August 13th, 1705, Marseille

82

Jean Hardouin

French classical scholar (1646-1729)

*December 23rd, 1646, Quimper †September 3rd, 1729, Paris

62

Robert Bolling

American planter and merchant 1646 - 1709

*December 26th, 1646, London †July 17th, 1709

Birthdays of famous people

Public holidays on October 21st

Fixed holidays (Christian feast day) which are celebrated on October 21st.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1646 is a normal year and no leap year.

Calendar
October 1646