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Millennium: 2nd millennium
Roger de Flor arrives in Constantinople by José Moreno Carbonero (1888).
1303 in various calendars
Gregorian calendar1303
Ab urbe condita2056
Armenian calendar752
Assyrian calendar6053
Balinese saka calendar1224–1225
Bengali calendar710
Berber calendar2253
English Regnal year31 Edw. 1 – 32 Edw. 1
Buddhist calendar1847
Burmese calendar665
Byzantine calendar6811–6812
Chinese calendar壬寅年 (Water Tiger)
4000 or 3793
    — to —
癸卯年 (Water Rabbit)
4001 or 3794
Coptic calendar1019–1020
Discordian calendar2469
Ethiopian calendar1295–1296
Hebrew calendar5063–5064
Hindu calendars
 - Vikram Samvat1359–1360
 - Shaka Samvat1224–1225
 - Kali Yuga4403–4404
Holocene calendar11303
Igbo calendar303–304
Iranian calendar681–682
Islamic calendar702–703
Japanese calendarKengen 2 / Kagen 1
Javanese calendar1214–1215
Julian calendar1303
Korean calendar3636
Minguo calendar609 before ROC
Nanakshahi calendar−165
Thai solar calendar1845–1846
Tibetan calendar阳水虎年
(male Water-Tiger)
1429 or 1048 or 276
    — to —
(female Water-Rabbit)
1430 or 1049 or 277

Year 1303 (MCCCIII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.






By place[edit]

Byzantine Empire[edit]

  • Autumn – Battle of Dimbos: The Byzantine governors (tekfurs) of Prusa, Adranos, Kestel, and Ulubat begin a military campaign against the Ottoman-Turkish forces of Sultan Osman I. They attack the Ottoman capital city of Yenişehir and proceed to relieve Nicaea, which is under an Ottoman blockade. Osman musters a 5,000-strong army and defeats the Byzantine forces at a mountain pass near Yenişehir.[14]


  • Mongol invasion of India: Mongol forces appear outside Delhi and begin the siege of the city. Alauddin Khalji and a Delhi vanguard army return to the capital, while the Delhi garrison resists assaults of the Mongols.[15]
  • Autumn – Mongol forces lift the siege of Delhi after two months, they retreat with great plunder and war booty. Meanwhile, Alauddin Khaliji orders to strengthen border fortresses along the Mongol routes to India.[16]




  1. ^ a b c Donald M. Nicol, The Last Centuries of Byzantium, 1261-1453 (Cambridge University Press, 1993) p.103
  2. ^ "The Khaljis: Alauddin Khalji", by Banarsi Prasad Saksena, in A Comprehensive History of India: The Delhi Sultanat (A.D. 1206–1526), ed. by Mohammad Habib and Khaliq Ahmad Nizami (People's Publishing House, 1970) p. 367
  3. ^ Sadler, John (2005). Border Fury: England and Scotland at War, 1296–1568, p. 86. Harlow: Pearson Education. ISBN 978-0-582-77293-9.
  4. ^ Verbruggen, J. F. (1997). The Art of Warfare in Western Europe During the Middle Ages: From the Eighth Century to 1340, p. 197. Suffolk: Boydell Press. ISBN 0-85115-630-4.
  5. ^ Waterson, James (2007). The Knights of Islam: The Wars of the Mamluks, p. 210. Greenhill Books. ISBN 978-1-85367-734-2.
  6. ^ Jeffrey Hamilton, The Plantagenets: History of a Dynasty (Bloomsbury Publishing, 2010) p.79
  7. ^ Armstrong, Pete (2003). Osprey: Stirling Bridge & Falkirk 1297–1298, pp. 86–87. ISBN 1-84176-510-4.
  8. ^ Fiona Watson, Under the Hammer: Edward I and Scotland, 1286-1307 (Birlinn, 2013) p.176
  9. ^ Ambraseys, N. N.; Melville, C. P.; Adams, R. D. (2005). The Seismicity of Egypt, Arabia and the Red Sea: A Historical Review. Cambridge University Press. p. 42. ISBN 9780521020251.
  10. ^ Kishori Saran Lal (1950). History of the Khalijis (1290–1320), p. 120. Allahabad: The Indian Press. OCLC 685167335.
  11. ^ Joseph F. O'Callaghan (2011). The Gibraltar Crusade: Castile and the Battle for the Strait, p. 120. University of Pennsylvania Press. ISBN 978-0-8122-2302-6.
  12. ^ Waley, Daniel (1985). Later Medieval Europe, p. 165 (2nd ed.). New York: Longman Inc. ISBN 0-582-49262-9.
  13. ^ Armstrong, Pete (2003). Osprey: Stirling Bridge & Falkirk 1297–1298, p. 87. ISBN 1-84176-510-4.
  14. ^ Donald Nicol (1997). Theodore Spandounes: On the origin of the Ottoman emperors, p. 10. Cambridge University Press.
  15. ^ Peter Jackson (2003). The Delhi Sultanate: A Political and Military History, pp. 222–224. Cambridge University Press. ISBN 978-0-521-54329-3.
  16. ^ René Grousset (1970). The Empire of the Steppes: A History of Central Asia, p. 339. Rutgers University Press. ISBN 978-0-8135-1304-1.