Calendar overview 831
|Saracens conquer Palermo from the Byzantines and make it the capital of the emirate of Sicily .|
|831 in other calendars|
|Armenian calendar||279/280 (turn of the year July)|
|Buddhist calendar||1374/75 (southern Buddhism); 1373/74 (alternative calculation according to Buddhas Parinirvana )|
|Chinese calendar||58th (59th) cycle|
|Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam)||193/194 (turn of the year April)|
|Iranian calendar||209/210 (around March 21)|
|Islamic calendar||215/216 (February 17-18)|
|Jewish calendar||4591/92 (September 10-11)|
ab urbe condita MDLXXXIV (1584)
Diocletian's era : 547/548 (New Year November)
|Seleucid era||Babylon: 1141/42 (turn of the year April)
Syria: 1142/43 (turn of the year October)
|Vikram Sambat (Nepalese Calendar)||887/888 (turn of the year April)|
Politics and world events
- Islam in Italy : Saracens conquer Palermo from the Byzantines and make it the capital of the emirate of Sicily .
First documentary mentions
- Fahrwangen , Fläsch , Ladir , Marmorera , Pitasch , Schongau , Sufers and Tiefencastel are first mentioned in a document.
- The Archbishopric of Hamburg is founded by Archbishop Ansgar .
- A church is built in Hamburg, the predecessor of the Mariendom .