|Ab urbe condita||1802|
|Balinese saka calendar||970–971|
|English Regnal year||N/A|
|Chinese calendar||戊子年 (Earth Rat)|
3745 or 3685
— to —
己丑年 (Earth Ox)
3746 or 3686
|- Vikram Samvat||1105–1106|
|- Shaka Samvat||970–971|
|- Kali Yuga||4149–4150|
|Japanese calendar||Eishō 4|
|Minguo calendar||863 before ROC|
|Seleucid era||1360/1361 AG|
|Thai solar calendar||1591–1592|
1175 or 794 or 22
— to —
1176 or 795 or 23
- Spring – Pecheneg Revolt: Emperor Constantine IX decides to transfer 15,000 Pecheneg warriors from their positions in the Balkans, to the eastern front. Upon approaching the Bosporus, the Pechenegs decide to turn back, and march through Bulgaria, until they reach the Byzantine city of Serdia. Later, joined by followers, the Pecheneg tribes raise the banner of revolt in Thrace.
- January 13 – Theodwin, prince-bishop of Liège, defeats Count Dirk IV of West Frisia near Dordrecht, and restores imperial authority in the Rhine Delta.
- The Republic of Pisa successfully completes the conquest of Sardinia, from the Andalusian occupiers.
- Viking Irish raiders ally with King Gruffydd ap Rhydderch of Gwent, in raiding along the River Severn.
- The Banu Hilal, a confederation of tribes of Arabia, begin their invasion in the Maghreb (North Africa). They are organized by the Egyptian Fatimid Caliphate to punish their former Zirid vassals.
- October 9 – Seonjong, king of Goryeo (d. 1094)
- Godelieve, Flemish saint (approximate date)
- Hermann II, count palatine of Lotharingia (d. 1085)
- John Theristus, Italian Benedictine monk (d. 1129)
- Li Gonglin, Chinese painter and antiquarian (d. 1106)
- Peter de Honestis, Italian monk (approximate date)
- Saw Lu, king of the Pagan Kingdom (d. 1084)
- Rhiryd ap Bleddyn, king of Powys (d. 1088)
- January 1 – Odilo of Cluny, French Benedictine abbot
- January 12 – Abū-Sa'īd Abul-Khayr, Persian Sufi poet (b. 967)
- January 13 – Dirk IV, count of Friesland west of the Vlie
- December 1 – Ermesinda of Bigorre, queen of Aragon (b. 1015)
- Airlangga, Indonesian ruler (raja) of Kahuripan
- Eustace I, count of Boulogne (House of Flanders)
- Philibert Schmitz, "Theoduin", in Biographie Nationale de Belgique, vol. 24 (Brussels, 1929), 757-758.
- Benvenuti, Gino (1985). Le Repubbliche Marinare. Amalfi, Pisa, Genova e Venezia. Rome: Newton & Compton Editori. p. 42. ISBN 88-8289-529-7.
- Barlow, Frank (2002). The Godwins. Pearson Education Ltd. p. 39. ISBN 0-582-42381-3.