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|Ab urbe condita||1811|
|Balinese saka calendar||979–980|
|English Regnal year||N/A|
|Chinese calendar||丁酉年 (Fire Rooster)|
3754 or 3694
— to —
戊戌年 (Earth Dog)
3755 or 3695
|- Vikram Samvat||1114–1115|
|- Shaka Samvat||979–980|
|- Kali Yuga||4158–4159|
|Japanese calendar||Tengi 6 / Kōhei 1|
|Minguo calendar||854 before ROC|
|Seleucid era||1369/1370 AG|
|Thai solar calendar||1600–1601|
1184 or 803 or 31
— to —
1185 or 804 or 32
- March 17 – King Lulach (the Unfortunate) of Scotland is killed in battle at Lumphanan against his cousin and rival Malcolm III (Canmore) who becomes "king of the Scots".
- September 20 – Empress Agnes de Poitou and King Andrew I (the White) of Hungary meet to negotiate about the border zone in Burgenland (modern Austria).
- The 4-year-old Judith of Swabia, the youngest daughter of the late Emperor Henry III (the Black), is engaged to Prince Solomon of Hungary at Regensburg.
- Norman conquest of southern Italy: Norman forces under Richard Drengot besiege and capture Capua. He takes the princely title from Prince Landulf VIII.
- Bolesław II (the Generous), the eldest son of Casimir I (the Restorer), succeeds his father after his death in Poznań. He becomes duke of Poland.
- The Almoravids conquer the Berghouata, a group of Berber tribes, who have establish an independent state in modern-day Morocco.
- Spring – Pope Stephen IX pronounces on the authenticity of the relics of Mary Magdalene at Vézelay Abbey in Burgundy, making it a major centre of pilgrimage.
- March 29 – Stephen IX dies of a severe illness after a pontificate of 7-months at Florence. He is succeeded by Nicholas II who will be installed the following year.
- November 6 – Emperor Isaac I (Komnenos) deposes Michael I (Cerularius), patriarch of Constantinople, and has him exiled to Prokonnessos (until 1059).
- Ealdred, archbishop of York, becomes the first English bishop to make a pilgrimage to Jerusalem.
- March 1 – Ermesinde, countess and regent of Barcelona
- March 17 – Lulach (the Unfortunate), king of Scotland
- March 29 – Stephen IX, pope of the Catholic Church
- August 2 – Judith of Schweinfurt, duchess of Bohemia
- November 28 – Casimir I, duke of Poland (b. 1016)
- Abdollah ibn Bukhtishu, Syrian physician (b. 940)
- Abu Muhammad al-Yazuri, vizier of the Fatimid Caliphate
- Ælfwold II, bishop of Sherborne (approximate date)
- Al-Mawardi, Abbasid jurist and diplomat (b. 972)
- Boite mac Cináeda (or Bodhe), Scottish prince
- Centule IV Gaston (the Old), viscount of Béarn
- Egbert of Fulda, German Benedictine abbot
- Fakhruddin As'ad Gurgani, Persian poet and writer
- Flaithem Mac Mael Gaimrid, Irish poet and Chief Ollam
- Grigor Magistros, Armenian prince and governor
- Ilduara Mendes, countess and regent of Portugal
- Theophanu, abbess of Essen and Gerresheim
- William VII (the Bold), duke of Aquitaine (b. 1023)