April 17th, 1721

Born on April 17th, 1721

Age in days, weeks and months
Wow, over 111,000 days old!

Why not celebrate an alternative birthday? In 540 days, exactly on December 9th, 2027, people who were born on April 17th, 1721 will be 112,000 days old!

... in seconds, minutes and hours

What happened on April 17th?

April 17th, 2013

An ammonium nitrate explosion occurred at a fertilizer company facility in West, Texas, U.S., killing 15 people and injuring 160 others.

April 17th, 2006

A Palestinian suicide bomber detonated explosives in a restaurant in Tel Aviv, Israel, killing 11 people and injuring 70 others.

April 17th, 1942

World War II: Captured French general Henri Giraud escaped from German captivity in the Königstein Castle.

April 17th, 2014

NASA announced the discovery of Kepler-186f, the first exoplanet with a radius similar to Earth's discovered in the habitable zone of another star.

April 17th, 1986

The Netherlands and the Isles of Scilly declared peace, having hypothetically been at war for 335 years without a single shot being fired and no casualties incurred.

April 17th, 1984

Metropolitan Police officer Yvonne Fletcher was shot and killed while on duty during a protest outside the Libyan embassy in London, resulting in an 11-day police siege of the building and a breakdown of Libya–United Kingdom relations.

April 17th, 1975

The Khmer Rouge captured Phnom Penh, the capital of the Khmer Republic, ending the Cambodian Civil War and establishing the socialist state of Democratic Kampuchea.

April 17th, 1973

George Lucas began writing a 13-page film treatment that later formed the basis of Star Wars.

April 17th, 1971

Ustaše-affiliated Croatian separatists attacked the Yugoslav embassy in Stockholm, fatally shooting the ambassador, Vladimir Rolović.

April 17th, 1969

Sirhan Sirhan was convicted of the assassination of U.S. senator Robert F. Kennedy.

April 17th, 1951

The Peak District was designated the first national park in the United Kingdom.

April 17th, 1907

Minas Geraes (pictured), the first of three Brazilian dreadnought battleships, was laid down, sparking a vastly expensive South American naval arms race with Argentina and Chile.

April 17th, 1809

Napoleonic Wars: After a three-day chase, the French ship D'Hautpoul was captured off Puerto Rico by a British squadron under Alexander Cochrane.

April 17th, 1797

French Revolutionary Wars: British forces commanded by Lieutenant-General Ralph Abercromby invaded the Spanish colonial port of San Juan, Puerto Rico.

April 17th, 1783

The Mechanical Turk (pictured), a fraudulent chess-playing "machine" by Wolfgang von Kempelen that was secretly controlled by a hidden human, began a tour of Europe.

Birthdays
... of famous people, actors, celebrities and stars on April 17th

Same year
Born in 1721

50

Tobias Smollett

18th-century poet and author from Scotland

*March 19th, 1721, Cardross †September 17th, 1771, Livorno

42

Madame de Pompadour

Chief mistress of Louis XV of France (1721-1764)

*December 29th, 1721, Paris †April 15th, 1764, Versailles

82

Edmund Pendleton

American politician (1721-1803)

*September 9th, 1721, Caroline County †October 23rd, 1803, Caroline County

66

Benjamin Wilson

British painter and scientist (1721-1788)

*June 21st, 1721, Leeds †June 6th, 1788, London

85

John Reid

British Army officer, composer, and flautist (1721–1807)

*February 13th, 1721, Perthshire †February 6th, 1807, London

86

Fredrik Henrik af Chapman

Swedish admiral and shipbuilder (1721-1808)

*September 9th, 1721, Gothenburg †August 19th, 1808, Karlskrona city community

61

Anna Dorothea Therbusch

Painter from Prussia (1721-1782)

*July 23rd, 1721, Berlin †November 9th, 1782, Berlin

46

Philipp Friedrich Gmelin

German professor of botany and chemistry (1721-1768)

*August 19th, 1721, Tübingen †May 9th, 1768, Tübingen

87

David Zeisberger

American missionary

*April 11th, 1721, Suchdol nad Odrou †November 17th, 1808, Ohio

59

Johann de Kalb

American general (1721-1780)

*June 19th, 1721, Hüttendorf †August 19th, 1780, Camden

70

Placidus Fixlmillner

Austrian monk-astronomer

*May 28th, 1721, Upper Austria †August 27th, 1791, Kremsmünster

81

Domenico Corvi

Italian painter (1721-1803)

*September 16th, 1721, Viterbo †July 22nd, 1803, Rome

71

Franz Anton Knittel

German theologian

*April 3rd, 1721, Salzdahlum †December 10th, 1792, Wolfenbüttel

72

Roger Sherman

Early American lawyer and politician, Founding Father of the United States (1721-1793)

*April 19th, 1721, Newton †July 23rd, 1793, New Haven

85

Eliphalet Dyer

American judge and politician

*September 14th, 1721, Windham †May 13th, 1807, Windham

52

Friedrich Wilhelm von Seydlitz

German general

*February 3rd, 1721, Kalkar †August 27th, 1773, Oława

46

John Frederick, Prince of Schwarzburg-Rudolstadt

Prince of Schwarzburg-Rudolstadt (1721-1767)

*January 8th, 1721, Rudolstadt †July 10th, 1767, Rudolstadt

76

Johann Samuel Diterich

German Archdeacon and parson (1721-1797)

*January 1st, 1721, Berlin †January 1st, 1797, Berlin

77

Christian Gotthelf von Gutschmid

German politician (1721-1798)

*December 12th, 1721, Kahren †December 30th, 1798, Dresden

48

Mark Akenside

English poet and physician

*November 9th, 1721, Newcastle upon Tyne †June 23rd, 1770, London

Birthdays of famous people

Public holidays on April 17th

Fixed holidays (Christian feast day) which are celebrated on April 17th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1721 is a normal year and no leap year.

Calendar
April 1721