From Wikipedia, the free encyclopedia
|Centuries:||13th century – 14th century – 15th century|
|Decades:||1370s 1380s 1390s – 1400s – 1410s 1420s 1430s|
|Years:||1397 1398 1399 – 1400 – 1401 1402 1403|
|1400 by topic|
|State leaders - Sovereign states|
|Birth and death categories|
|Births - Deaths|
|Establishments and disestablishments categories|
|Establishments - Disestablishments|
|Art and literature|
|1400 in poetry|
|Ab urbe condita||2153|
|English Regnal year||1 Hen. 4 – 2 Hen. 4|
— to —庚辰年十二月十六日
|- Vikram Samvat||1456–1457|
|- Shaka Samvat||1322–1323|
|- Kali Yuga||4501–4502|
|- Ǹrí Ìgbò||400–401|
|Japanese calendar||Ōei 7
|Juche calendar||N/A (before 1912)|
|Julian calendar||1400 MCD|
|Minguo calendar||512 before ROC
|Thai solar calendar||1943|
|Wikimedia Commons has media related to: 1400|
- January – Henry IV quells the Epiphany Rising and executes the Earls of Kent, Huntingdon and Salisbury and the Baron le Despencer for their attempt to have Richard II of England restored as King.
- February - Henry 'Hotspur' Percy invades and lays waste parts of Scotland. Their attacks are eventually fought off by the Scots.
- February 14 – Richard II of England dies by means unknown in Pontefract Castle. It is likely that King Henry IV ordered the death of Richard by starvation to prevent further uprisings.
- August – The princes of the German states vote to depose Wenceslaus as Holy Roman Emperor due to his weak leadership and his mental illnesses.
- August 21 – Rupert, Count Palatine of the Rhine, is elected as Holy Roman Emperor.
- September 16 – Owain Glyndŵr is proclaimed Prince of Wales by his followers and begins attacking English strongholds in north-east Wales.
- December – Manuel II Palaiologos becomes the first (and last) Byzantine Emperor to visit England.
Date unknown 
- Frederick, Duke of Brunswick-Lüneburg is declared as a rival to Holy Roman Emperor Wenceslaus. However, Frederick is murdered shortly after.
- Timur defeats both the Ottoman Empire and the Mamluk Sultanate of Egypt to capture the city of Damascus in present-day Syria. Much of the city's inhabitants are subsequently massacred by Timur's troops.
- Timur conquers the Empire of The Black Sheep Turkomans, in present-day Armenia, and the Jalayirid Dynasty in present-day Iraq. Black Sheep ruler Qara Yusuf and Jalayirid Sultan Ahmad flee and take refuge with the Ottoman Sultan Bayezid I.
- Newcastle-upon-Tyne created County Corporate by Henry IV.
- In present-day Korea, King Jeongjong of Joseon abdicates in fear of an attack by his ambitious younger brother, Taejong. Taejong succeeds to the throne.
- Prince Parameswara establishes the Malacca Sultanate in present-day western Malaysia and northern Sumatra.
- Five year old Trần An is forced to abdicate as ruler of Đại Việt (now Vietnam) in favour of his maternal grandfather Hồ Quý Ly, ending the Trần Dynasty and starting the Hồ Dynasty. Hồ Quý Ly subsequently changes the country's name to Đại Ngu.
- Hananchi succeeds Min as King of Hokuzan in present-day north Okinawa, Japan.
- Wallachia (now southern Romania) resists an invasion by the Ottomans.
- Jean Froissart completes his Chronicles detailing the events of the 14th Century in France.
- The Medici family becomes powerful in Florence.
- Europe is reported to have around 52 million inhabitants.
- The Kingdom of Kongo begins.
- January 13 – Infante John of Portugal, the Constable (d. 1442)
- December 25 – John Sutton, 1st Baron Dudley, Lord Lieutenant of Ireland (d. 1487)
- date unknown
- January 5
- January 13 – Thomas le Despenser, 1st Earl of Gloucester, English politician (executed)
- January 16 – John Holland, 1st Duke of Exeter, English politician (executed)
- February 14 – King Richard II of England (probably murdered) (b. 1367)
- April 28 – Baldus de Ubaldis, Italian jurist (b. 1327)
- June 5 – Frederick, Duke of Brunswick-Lüneburg, rival Holy Roman Emperor
- October 25 – Geoffrey Chaucer, English poet (b. 1343)
- December 24 – Archibald the Grim, Scottish magnate (b. 1328)
- date unknown – Narayana Pandit, Indian mathematician (b. 1340)