Editing 1388 (section)

=== January&ndash;December ===
* [[February]] &ndash; The entire court of [[Richard II of England]] are convicted of treason by the [[Merciless Parliament]], under the influence of the [[Lords Appellant]], and are all either executed or exiled. Richard II effectively becomes a puppet of the Lords Appellant.
* [[April 9]] &ndash; [[Battle of Näfels]]: [[Glarus]], in alliance with the [[Old Swiss Confederacy]], decisively defeat the [[Habsburg]]s, despite being outnumbered sixteen to one.
* [[May 18]] &ndash; [[Battle of Buyur Lake]]: A Chinese Ming invasion force under General [[Lan Yu (general)|Lan Yu]] defeats a large [[Mongolia]]n army under [[Uskhal Khan Tögüs Temür]], and captures 100 members of the [[Northern Yuan Dynasty]]. Uskhal Khan is killed whilst trying to escape, and is succeeded as Khan of Mongolia by his rival, [[Jorightu Khan Yesüder|Jorightu]]. The invading Chinese army destroys [[Karakorum]], the capital of the Mongol Empire.<ref name="lang98-159">{{cite book |last = Langlois |first = John D. Jr. |title = The Cambridge History of China, Volume 7: The Ming Dynasty, 1368–1644, Part 1 |year = 1998 |publisher = Cambridge University Press |location = Cambridge |ISBN = 0-521-24332-7 |chapter = The Hung-wu reign, 1368–1398 | page = 159}}</ref>
* [[August 5]] &ndash; [[Battle of Otterburn]]: A Scottish army, led by [[James Douglas, 2nd Earl of Douglas|James Douglas]], defeats an English army, capturing their leader, [[Henry Percy (Hotspur)|Harry Hotspur]]. Douglas is killed during the battle.
* [[August 27]] &ndash; [[Battle of Bileća]]:  The [[Bosnians]] check the [[Ottoman Empire|Ottoman]] advance.
* [[December 12]] &ndash; [[Maria of Enghien]] sells the [[Lordship of Argos and Nauplia]] to the [[Republic of Venice]].