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|Ab urbe condita||2137|
|Balinese saka calendar||1305–1306|
|English Regnal year||7 Ric. 2 – 8 Ric. 2|
|Chinese calendar||癸亥年 (Water Pig)|
4080 or 4020
— to —
甲子年 (Wood Rat)
4081 or 4021
|- Vikram Samvat||1440–1441|
|- Shaka Samvat||1305–1306|
|- Kali Yuga||4484–4485|
|Japanese calendar||Eitoku 4 / Shitoku 1|
|Minguo calendar||528 before ROC|
|Thai solar calendar||1926–1927|
1510 or 1129 or 357
— to —
1511 or 1130 or 358
|Wikimedia Commons has media related to 1384.|
- May–September 3 – Siege of Lisbon by the Castilian army, during the 1383–85 Crisis in Portugal.
- August 16 – The Hongwu Emperor of Ming China hears a case of a couple who tore paper money notes, while fighting over them. Under the law, this is considered to be destroying stamped government documents, which is to be punished by a caning with a bamboo rod of 100 strokes. However, the Emperor decides to pardon them, on the grounds that it was unintentional.
- November 16 – 10-year-old Jadwiga is crowned "King" of Poland in Kraków following the death of her father, King Louis, in 1382.
- December 25 – Use of the Spanish era dating system in the Crown of Castile is suppressed.
- The Hongwu Emperor of China reinstates the Imperial examination system for drafting scholar-officials to the civil service, after suspending the system since 1373, in favor of a recommendation system to office.
- The Nasrid princes of Al-Andalus replace Abu al-Abbas with Abu Faris Musa ibn Faris, as ruler of the Marinid dynasty in modern-day Morocco.
- Zain Al-Abidin succeeds his father, Shah Shuja, as ruler of the Muzaffarids in central Persia.
- Shortly before his death, John Wycliffe sends out tracts against Pope Urban VI, who has not turned out to be the reformist Wycliffe had hoped.
- Qara Muhammad succeeds Bairam Khawaja, as ruler of the Kara Koyunlu ("Black Sheep Turkomans"), in modern-day Armenia and northern Iraq.
- Timur conquers the northern territories of the Jalayirid Empire, in western Persia.
- Katharine Lady Berkeley's School is founded in Gloucestershire, England.
- January 6 – Edmund Holland, 4th Earl of Kent (d. 1408)
- August – Antoine, Duke of Brabant (d. 1415)
- August 11 – Yolande of Aragon (d. 1442)
- date unknown
- January 30 – Louis II, Count of Flanders (b. 1330)
- May – William Douglas, 1st Earl of Douglas, Scottish magnate (b.c. 1327)
- June 8 – Kan'ami, Japanese actor and playwright (b. 1333)
- August 6 – Francesco I of Lesbos
- August 20 – Geert Groote, Dutch founder of the Brethren of the Common Life (b. 1340)
- September 10 – Joanna of Dreux, Countess of Penthievre and nominal Duchess of Brittany (b. 1319)
- September 20 – Louis I, Duke of Anjou (b. 1339)
- October – Joan Holland, Duchess of Brittany (b. 1350)
- December 23 – Thomas Preljubović, ruler of Epirus
- December 31 – John Wycliffe, English theologian, Bible translator and Catholic reform campaigner
- date unknown
- probable – Liubartas, King of Galicia
- [Muhammad b. Makki al-Jizzini al-'Amili] Al-Shahid al-Awwal Muhammad b. Makki al-Jizzini al-'Amili ]
known as al-Shahid al-Awwal. Author of Al-Lum'a al-Dimashqiyya (book)