Calendar overview 825
|Grímur Kamban first conquest man to the Faroe Islands . The Viking Age in the Faroe Islands begins.|
|825 in other calendars|
|Armenian calendar||273/274 (turn of the year July)|
|Buddhist calendar||1368/69 (southern Buddhism); 1367/68 (alternative calculation according to Buddhas Parinirvana )|
|Chinese calendar||58th (59th) cycle|
|Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam)||187/188 (turn of the year April)|
|Iranian calendar||203/204 (around March 21)|
|Islamic calendar||209/210 (April 23/24)|
|Jewish calendar||4585/86 (September 15-16)|
|Malayalam calendar||Start of the calendar|
ab urbe condita MDLXXVIII (1578)
Diocletian's era : 541/542 (New Year November)
|Seleucid era||Babylon: 1135/36 (turn of the year April)
Syria: 1136/37 (New Year October)
|Vikram Sambat (Nepalese Calendar)||881/882 (turn of the year April)|
Politics and world events
- September: In the Battle of Ellandun , Egbert von Wessex inflicts a crushing defeat on the army of Beornwulf of Mercia . Thereupon the kingdom of East Anglia rises against the rule of Mercias.
- Cumbel and Füllinsdorf are mentioned in a document for the first time.
- A Muslim attempt to conquer Coimbra and Viseu fails.
- Around 825 Grímur Kamban came to the Faroe Islands as the first land taker . This marked the beginning of the Viking Age on the Faroe Islands (until 1035 ).
Science and culture
- The Malayalam calendar begins.
- Emperor Lothar I founds a rhetoric school in Pavia .
- The House of Wisdom is founded in Baghdad by the Abbasid caliph al-Ma'mūn . The much older academy in Gundischapur serves as a model . In the House of Wisdom, 90 people work on scientific translations , mainly from Greek into Arabic. There is also an observatory, an academy and a rich library as well as a hospital.
- Around 825 the mathematical textbook Hisab al-dschabr wa-l-muqabala (German about science of reduction and simultaneous cancellation ) appears, which can be regarded as the "birth of classical algebra ".
- around 825: Gisela, the daughter of the East Westphalian tribal prince Hessi , founds the Wendhusen monastery .
- Ariwara no Narihira , Japanese poet († 880 )
- Ludwig II , Frankish Emperor and King of Italy († 875 )
- Muhammad ibn ʿĪsā at-Tirmidhī , Islamic scholar († 892 )
- 825/ 830 : Karl of Aquitaine , Archbishop of Mainz († 863 )
- 825/ 835 : Salomon , prince of the Bretons († 874 )
- as-Saiyida Nafīsa , Islamic folk saint (* 760 ) January:
- November 16 : Waltger , Saxon nobleman, founder of a monastery and saint of the Catholic Church
- December 28th : Haistulph , Archbishop of Mainz
- Beornwulf , King of Mercia
- Bishr ibn al-Muʿtamir , Islamic theologian
- Ida of Herzfeld , German Church founder and Saints (* around 770 / 775 )
- around 825: Rampó , Count of Barcelona (* around 770 )