1340

1340 (MCCCXL) was a leap year starting on Saturday of the Julian calendar, the 1340th year of the Common Era (CE) and Anno Domini (AD) designations, the 340th year of the 2nd millennium, the 40th year of the 14th century, and the 1st year of the 1340s decade. As of the start of 1340, the Gregorian calendar was 8 days ahead of the Julian calendar, which was the dominant calendar of the time.

1340 in other calendars

Gregorian calendar	1340 MCCCXL
Ab urbe condita	2093
Armenian calendar	789 ԹՎ ՉՁԹ
Assyrian calendar	6090
Balinese saka calendar	1261–1262
Bengali calendar	747
Berber calendar	2290
English Regnal year	13 Edw. 3 – 14 Edw. 3
Buddhist calendar	1884
Burmese calendar	702
Byzantine calendar	6848–6849
Chinese calendar	己卯年 (Earth Rabbit) 4036 or 3976     — to — 庚辰年 (Metal Dragon) 4037 or 3977
Coptic calendar	1056–1057
Discordian calendar	2506
Ethiopian calendar	1332–1333
Hebrew calendar	5100–5101
Hindu calendars
- Vikram Samvat	1396–1397
- Shaka Samvat	1261–1262
- Kali Yuga	4440–4441
Holocene calendar	11340
Igbo calendar	340–341
Iranian calendar	718–719
Islamic calendar	740–741
Japanese calendar	Ryakuō 3 (暦応３年)
Javanese calendar	1252–1253
Julian calendar	1340 MCCCXL
Korean calendar	3673
Minguo calendar	572 before ROC 民前572年
Nanakshahi calendar	−128
Thai solar calendar	1882–1883
Tibetan calendar	ས་མོ་ཡོས་ལོ་ (female Earth-Hare) 1466 or 1085 or 313     — to — ལྕགས་ཕོ་འབྲུག་ལོ་ (male Iron-Dragon) 1467 or 1086 or 314

Events

• Europe has about 74 million inhabitants.
• January 26 – King Edward III of England is declared King of France
• June 24 – The Battle of Sluys is fought between the naval fleets of the Kingdom of England and the Kingdom of France. The former was under the command of Edward III of England and the latter under those of admiral Hue Quiéret and treasurer Nicholas Béhuchet assisted by Genoese mercenary galleys serving under Egidio Bocanegra. The battle ends with the almost complete destruction of the French. Both their commanders were among the casualties. However the mercenaries manage to escape.
• A son of deceased King Christopher II of Denmark is elected to the throne following eight years of Interregnum. He will reign as Valdemar IV of Denmark.