5 events the sources record for this year, grouped by region.
What happened
Japan (4)
The deputy envoy and above of the Tang embassy are called to the inner hall and given the sword of authority; Kiyokawa is raised to Senior Fourth Rank, lower grade. (Shoku Nihongi (Continued Chronicles of Japan) 續日本紀 卷第18 「閏三月丙辰。召遣唐使」)
The Dazaifu reports that the Silla prince Kim Taeryeom and tribute envoy Kim Hwon, with over 700 people in seven ships, have arrived. (Shoku Nihongi (Continued Chronicles of Japan) 續日本紀 卷第18 「己巳。大宰府奏。新羅」)
The great Rushana Buddha image is completed and its eyes are opened. That day, ten thousand monks are invited to Tōdai-ji for a great Buddhist feast. (Shoku Nihongi (Continued Chronicles of Japan) 續日本紀 卷第18 「夏四月乙酉。盧舍那大」)
Bohai envoy Mo Simong, with the title of Grand General for Protecting the State, and others reach Sado Island in Echigo Province. (Shoku Nihongi (Continued Chronicles of Japan) 續日本紀 卷第18 「丁夘。渤海使輔國大將」)
Western Europe (1)
Cuthred, king of Wessex, defeated Æthelbald, king of Mercia, at Burford and drove him off. (Anglo-Saxon Chronicle Giles/Ingram 1847 A.D. 752 항 (pg657.txt 줄 2134))