765

Year 765 was a common year starting on Tuesday of the Julian calendar. The denomination 765 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Events

King Pepin III restores the papal privileges in Benevento and Tuscany territory.
The Annals of Tigernach tell of a shortage of bread in Ireland.
Britain
King Æthelwald of Northumbria is deposed at Pincanheale, possibly at a gathering of his own magnates. He is succeeded by Alhred, a distant cousin of the late king Oswulf.
Abbasid Caliphate
The Zenata Berber tribe of Banu Ifran rebels against the Abbasid Caliphate, and creates an independent state centered around Tlemcen. Their tribal chief Abu Qurra rebuilds the city.
By topic

European writings make the first known mention of a three-field system in use in medieval Europe. The crop rotation is the practice of growing a series of different types of crops in the same area in sequential seasons. Under this system, the land of an estate or village is divided into three large fields, and makes a given section of land productive 2 years out of 3, instead of every other year.