April 17th, 1621

Born on April 17th, 1621

Age in days, weeks and months
Wow, over 147,000 days old!

Why not celebrate an alternative birthday? In 21 days, exactly on July 3rd, 2026, people who were born on April 17th, 1621 will be 148,000 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 1621

73

Jean de La Fontaine

French poet, fabulist and writer (1621–1695)

*July 8th, 1621, Château-Thierry †April 13th, 1695, Paris

65

Louis, Grand Condé

Prince of the Condé branch of the House of Bourbon, French general and famous military leader

*September 8th, 1621, Paris †December 11th, 1686, Fontainebleau

57

Andrew Marvell

English poet and politician (1621–1678)

*March 31st, 1621, Winestead †August 16th, 1678, London

54

Thomas Willis

English physician (1621-1675)

*January 27th, 1621, Great Bedwyn †November 11th, 1675, London

76

Leonora Christina Ulfeldt

Danish countess

*July 8th, 1621, Frederiksborg Palace †March 16th, 1698, Maribo

71

Jan Andrzej Morsztyn

Polish poet (1621–1693)

*June 24th, 1621, Raciborsko †January 8th, 1693, Paris

47

Willem van der Zaan

Dutch admiral

*June 29th, 1621, Amsterdam †March 17th, 1669, Cape Three Forks

49

Petar Zrinski

Croatian military commander

*June 6th, 1621, Vrbovec †April 30th, 1671, Wiener Neustadt

17

Sibylla Schwarz

German poet

*February 14th, 1621, Greifswald †July 31st, 1638, Greifswald

71

Rutger von Ascheberg

Swedish noble (1621-1693)

*June 2nd, 1621, Perbohnen †April 17th, 1693, Gothenburg

28

Isaac van Ostade

Painter from the Northern Netherlands (1621-1649)

*June 2nd, 1621, Haarlem †October 16th, 1649, Haarlem

60

Georg Neumark

German poet and composer of hymns (1621-1681)

*March 16th, 1621, Bad Langensalza †July 8th, 1681, Weimar

61

Anthony Ashley Cooper, 1st Earl of Shaftesbury

English politician and founder of the Whig party (1621-1683)

*July 22nd, 1621, Dorset †January 21st, 1683, Amsterdam

49

William Penn

English admiral and politician (1621-1670)

*April 23rd, 1621, Bristol †September 16th, 1670, Walthamstow

35

David Beck

Dutch portrait painter (1621-1656)

*May 25th, 1621, Delft †December 6th, 1656, The Hague

55

Ernst Friedrich Schröter

Germman law academic

*January 1st, 1621, Jena †January 1st, 1676, Jena

68

Caspar Ziegler

German jurist, poet and composer (1621-1690)

*September 15th, 1621, Leipzig †April 17th, 1690, Lutherstadt Wittenberg

56

Daniel Lüdemann

German theologian

*April 10th, 1621, Pasewalk †September 20th, 1677, Stade

54

Jacques Courtois

French painter (1621-1676)

*February 12th, 1621, Saint-Hippolyte †January 1st, 1676, Rome

60

Heneage Finch, 1st Earl of Nottingham

English politician

*December 23rd, 1621, Eastwell †December 18th, 1682, 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 1621 is a normal year and no leap year.

Calendar
April 1621