This article needs additional citations for verification. (May 2019)
|Ab urbe condita||2208|
|Balinese saka calendar||1376–1377|
|English Regnal year||33 Hen. 6 – 34 Hen. 6|
|Chinese calendar||甲戌年 (Wood Dog)|
4151 or 4091
— to —
乙亥年 (Wood Pig)
4152 or 4092
|- Vikram Samvat||1511–1512|
|- Shaka Samvat||1376–1377|
|- Kali Yuga||4555–4556|
|Japanese calendar||Kyōtoku 4 / Kōshō 1|
|Minguo calendar||457 before ROC|
|Thai solar calendar||1997–1998|
1581 or 1200 or 428
— to —
1582 or 1201 or 429
|Wikimedia Commons has media related to 1455.|
- January 8 – Pope Nicholas V publishes Romanus Pontifex, an encyclical addressed to King Afonso V of Portugal, which sanctions the conquest of non-Christian lands, and the reduction of native non-Christian populations to 'perpetual slavery'. (Later there will be a dramatic reversal when, in 1537, the bull Sublimis Deus of Pope Paul III forbids the enslavement of non-Christians.)
- February 23 – The Gutenberg Bible is the first book printed with movable type.
- April 8 – Pope Calixtus III succeeds Pope Nicholas V, as the 209th pope.
- Spring – The Wars of the Roses begin in England.
- May 1 – Battle of Arkinholm: Forces loyal to King James II of Scotland defeat the supporters of the Earl of Douglas.
- May 22 – First Battle of St Albans: Richard, Duke of York, defeats and captures King Henry VI of England.
- November 15 – The conflict between Vladislav II of Wallachia and John Hunyadi escalates, so the latter decides to support Vlad the Impaler for the throne of Wallachia, the following year.
- January 9 – William IV, Duke of Jülich-Berg, Count of Ravensberg (d. 1511)
- January 29 – Johann Reuchlin, German-born humanist and scholar (d. 1522)
- February 2 – King John of Denmark, Norway, and Sweden (d. 1513)
- March 3
- March 15 – Pietro Accolti, Italian Catholic cardinal (d. 1532)
- April 17 – Andrea Gritti, Doge of Venice (d. 1538)
- May 16 – Wolfgang I of Oettingen, German count (d. 1522)
- June 1 – Anne of Savoy, Savoy royal (d. 1480)
- July 9 – Frederick IV of Baden, Dutch bishop (d. 1517)
- July 15 – Queen Yun, Korean queen (d. 1482)
- August 2 – John Cicero, Elector of Brandenburg (d. 1499)
- August 15 – George, Duke of Bavaria (d. 1503)
- November 9 – Johann V of Nassau-Vianden-Dietz, Lord of Breda and Stadtholder of Guelders and Zutphen (d. 1516)
- date unknown
- Peter Vischer the Elder, German sculptor (approximate date) (d. 1529)
- Estefania Carròs i de Mur, Spanish educator (approximate date) (d. 1511)
- Raden Patah, Javanese sultan, founder of the Demak Sultanate (d. 1518)
- María de Ajofrín, Spanish visionary (d. 1489)
- Nicholas Barnham, English knight, killed in the War of the Roses (d. 1485)
- February 18 – Fra Angelico, Italian painter (b. 1395)
- March 24 – Pope Nicholas V (b. 1397)
- April 1 – Zbigniew Oleśnicki, Polish Catholic cardinal and statesman (b. 1389)
- May 1 – Archibald Douglas, Earl of Moray (in battle)
- May 22 (killed at the First Battle of St Albans):
- September 3 – Alonso Tostado, Spanish Catholic bishop
- October 22 – Johannes Brassart, Flemish composer
- October 28 – Guillaume-Hugues d'Estaing, French Catholic cardinal
- December 1 – Lorenzo Ghiberti, Italian sculptor and metal smith (b. 1378)
- December 2 – Isabel of Coimbra, queen of Portugal (b. 1432)
- This Facsimile Page of Gutenberg's 42-line Bible (1453-1455) was Printed on the Gutenberg Press Loaned by the Gutenberg Museum of Mainz for "A Century of Progress International Exposition", Chicago, 1933, and Exhibited by the Cuneo Press, Inc. Gutenberg Press. 1933.
- John Sadler (January 14, 2014). The Red Rose and the White: The Wars of the Roses, 1453-1487. Routledge. p. 16. ISBN 978-1-317-90518-9.
- Encyclopædia Britannica: A New Survey of Universal Knowledge. Encyclopædia Britannica. 1964. p. 89.
- Hourihane, Colum (2012). The Grove Encyclopedia of Medieval Art and Architecture. OUP USA. p. 217. ISBN 9780195395365.
- Benzoni, Gino (2002). "GRITTI, Andrea". Dizionario Biografico degli Italiani, Volume 59: Graziano–Grossi Gondi (in Italian). Rome: Istituto dell'Enciclopedia Italiana.
- Guido Di Piero, Known as Fra Angelico, Ca. 1395-1455. Germany. 1998. p. 6. ISBN 978-3-8290-0246-2.
- "Nicholas V | Vatican Library & Dum Diversas". Encyclopedia Britannica. Retrieved May 6, 2019.