Editing 1340 (section)

== Events ==
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* [[January 26]] &ndash; King [[Edward III of England]] declares himself King of [[Kingdom of France|France]] at Ghent, Flanders.
* [[March 6]] &ndash; [[Bohemian Crusade (1340)|Bohemian Crusade]]: The Church authorizes a military expedition against heretics.
* [[April 8]] &ndash; [[Marinid]] galleys, under the command of Muhammad ibn Ali al-Azafi, rout the [[Kingdom of Castile|Castellan]] fleet, off the coast of [[Algeciras]].
* [[April]]–[[July]] &ndash; Trapezuntine Civil War: An abortive uprising occurs against [[Irene Palaiologina of Trebizond]], the first of a number of coups, revolts, and succession disputes.
* [[June 7]] &ndash; [[Rotterdam]] is officially declared a city.
* [[June 24]]
** [[Hundred Years' War (1337–1360)|Hundred Years' War]]: [[Battle of Sluys]] &ndash; The English fleet, under the command of [[Edward III of England]], battles the French fleet, under that of [[Admiral]] [[Hugues Quiéret]] and treasurer [[Nicolas Béhuchet]], assisted by [[Republic of Genoa|Genoese]] [[mercenary]] [[galley]]s under Egidio Bocanegra, on the [[Low Countries]] coast. The French fleet is virtually destroyed, and both of its commanders are killed.
** [[Valdemar IV of Denmark]], son of deceased King [[Christopher II of Denmark|Christopher II]], is elected to the throne, following 8 years of [[interregnum]].
* [[July 26]] &ndash; Hundred Years' War &ndash; [[Battle of Saint-Omer]]: The French defeat the English.
* [[September 25]] &ndash; Hundred Years' War: The temporary [[Truce of Espléchin]] is signed between England and France.<ref>{{cite book|last1=Palmer|first1=Alan|last2=Palmer |first2=Veronica|year=1992|title=The Chronology of British History|publisher=Century Ltd|location=London|pages=102–104|isbn=0-7126-5616-2}}</ref>
* [[October 30]] &ndash; [[Battle of Río Salado]] in Spain: The kings of [[kingdom of Castile|Castile]] and [[kingdom of Portugal|Portugal]] defeat the [[Nasrid dynasty|Nasrid]] ruler of [[Emirate of Granada|Granada]] and his Moroccan allies.

===Date unknown===
* [[Europe]] has about 74 million inhabitants.
*An epidemic in northern Italy is recorded by [[Augustine of Trent]], in his ''Epistola astrologica''.
* The [[Monarchy of Japan]] reaches its 2,000 year anniversary (according to traditional starting dates).</onlyinclude>