7 events the sources record for this year, grouped by region.
What happened
Korean Peninsula (1)
When Uicheon returns from Song and reaches the Yeseong River, the king and queen mother go to meet him; he presents 1,000 volumes of sutras and, at Heungwangsa, sets up the Gyojang Dogam, collecting and printing 4,000 books from Liao, Song and Japan (Goryeosa Jeolyo (Essentials of Goryeo History) 권6 宣宗思孝大王 三年)
West Asia (2)
The emperor sent Tatikios with an army to Nicaea and urged him to fight with prudence. (Anna Komnene, The Alexiad Dawes 6.10 (문장 7))
Prosouch besieged Nicaea with a great army and held out for three months. (Anna Komnene, The Alexiad Dawes 6.11 (문장 1))
Southern Europe (2)
Elkanes besieged Apollonias, and after six days and nights took the outer walls. (Anna Komnene, The Alexiad Dawes 6.13 (문장 4))
The emperor encamped by the river near Blisnos, close to Philippopolis. (Anna Komnene, The Alexiad Dawes 6.14 (문장 21))
Western Europe (2)
At Lammas, William received at Salisbury the oaths of allegiance of all the leading men of England. (Anglo-Saxon Chronicle Giles/Ingram 1847 A.D. 1086 항 (pg657.txt 줄 7610))
At Pentecost William knighted his son Henry at Westminster. (Anglo-Saxon Chronicle Giles/Ingram 1847 A.D. 1086 항 (pg657.txt 줄 7610))