April 17th, 1451

Born on April 17th, 1451

Age in days, weeks and months
Wow, over 209,000 days old!

Why not celebrate an alternative birthday? In 714 days, exactly on April 2nd, 2026, people who were born on April 17th, 1451 will be 210,000 days old!

... in seconds, minutes and hours

What happened on April 17th?

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

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

April 17th, 1984

Metropolitan Police officer Yvonne Fletcher was shot and killed while on duty during a protest outside the Libyan embassy in London's St James's Square, resulting in an 11-day police siege of the building and a breakdown of diplomatic relations between the two nations.

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 entitled The Star Wars.

April 17th, 1969

Sirhan Sirhan was convicted of the assassination of United States 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, a British squadron under Alexander Cochrane captured the French ship-of-the-line D'Hautpoul off Puerto Rico.

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, a fraudulent chess-playing "machine" by Wolfgang von Kempelen that was secretly controlled by a hidden human, began a tour of Europe.

April 17th, 1362

Lithuanian Crusade: After a month-long siege, forces of the Teutonic Order captured and destroyed Kaunas Castle (reconstruction pictured), which was defended by troops of the Grand Duchy of Lithuania.

April 17th, 1080

Canute IV became King of Denmark upon the death of his brother Harald III.

April 17th, 2021

The funeral of Prince Philip, Duke of Edinburgh, takes place at St George's Chapel, Windsor Castle.

April 17th, 2014

NASA's Kepler space telescope confirms the discovery of the first Earth-size planet in the habitable zone of another star.

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

Same Day
Who's birthday is on April 17th?

63

Pete Shelley

British singer-songwriter (1955–2018)

*April 17th, 1955, Leigh †December 6th, 2018, Tallinn

57

Timothy Gibbs

American actor

*April 17th, 1967, Calabasas

73

Horst Hrubesch

German association football player and manager

*April 17th, 1951, Hamm

83

Andrea Gritti

Doge of Venice (1455-1539)

*April 17th, 1455, Bardolino †December 28th, 1538, Venice

65

Sean Bean

English actor

*April 17th, 1959, Handsworth

67

Nick Hornby

English novelist

*April 17th, 1957, Redhill

87

Alain Poher

French politician (1909-1996)

*April 17th, 1909, Ablon-sur-Seine †December 9th, 1996, Paris

37

Medhi Benatia

Moroccan and French footballer

*April 17th, 1987, Courcouronnes

61

Roddy Piper

Canadian professional wrestler (1954-2015)

*April 17th, 1954, Saskatoon †July 31st, 2015, Hollywood

82

David Bradley

British actor

*April 17th, 1942, York

52

Jennifer Garner

American actress

*April 17th, 1972, Houston

32

Jasper Stuyven

Belgian cyclist

*April 17th, 1992, Leuven

50

Victoria Beckham

English businesswoman, fashion designer and singer

*April 17th, 1974, Harlow

43

Chris Thompson

British long-distance runner

*April 17th, 1981, Barrow-in-Furness

54

Pascale Arbillot

French actress

*April 17th, 1970, France

78

Thornton Wilder

American playwright and novelist (1897–1975)

*April 17th, 1897, Madison †December 7th, 1975, Hamden

84

Sirimavo Bandaranaike

Prime Minister of Ceylon (later Sri Lanka) from 1960–65, 1970–77, 1994–2000

*April 17th, 1916, Baḷangoḍa †October 10th, 2000, Colombo

63

William Holden

American actor (1918–1981)

*April 17th, 1918, O'Fallon †November 12th, 1981, Santa Monica

83

Lagle Parek

Estonian politician

*April 17th, 1941, Pärnu

59

Rebecca Luker

American actress, singer and recording artist

*April 17th, 1961, Helena †December 23rd, 2020, Manhattan

Same year
Born in 1451

53

Isabella I of Castile

Queen of the Crown of Castile, from 1474 to 1504; first queen of a dynastically-united Spain, from 1479 to 1504

*April 22nd, 1451, Monasterio de Nuestra Señora de Gracia †November 26th, 1504, Palacio Testamentario

36

James III of Scotland

King of Scotland from 1460 to 1488

*July 10th, 1451, Stirling Castle †June 11th, 1488, Stirling

53

Frederick IV of Naples

King of Naples

*October 16th, 1451, Naples †November 9th, 1504, Tours

67

Hugh Oldham

English cleric, Bishop of Exeter and patron of education (c.1452–1519)

*November 30th, 1451, Lancashire †June 25th, 1519, Exeter

53

Engelbert II of Nassau

Count of Nassau-Vianden and Lord of Breda

*May 17th, 1451, Breda †May 31st, 1504, City of Brussels

25

Isabel Neville, Duchess of Clarence

English noble

*September 5th, 1451, Warwick Castle †December 22nd, 1476, Warwick Castle

62

Wolfgang von Bayern

German aristocrat (1451-1514)

*November 1st, 1451, Munich †May 24th, 1514, Landsberg am Lech

72

Elisabeth of Brandenburg, Duchess of Württemberg

Princess of Brandenburg by birth and by marriage Duchess of Württemberg

*November 29th, 1451, Ansbach †March 28th, 1524, Nürtingen

70

Raffaello Maffei

Italian humanist, historian and theologian (1451-1522)

*February 17th, 1451, Rome †January 25th, 1522, Volterra

71

Franchinus Gaffurius

Italian music theorist and composer (1451–1522)

*January 14th, 1451, Lodi †June 25th, 1522, Milan

57

René II

Duke of Lorraine

*May 2nd, 1451, Angers †December 10th, 1508, Fains

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 1451 is a normal year and no leap year.

Calendar
April 1451