Calendar overview 840
After the death of Louis the Pious ,
power struggles broke out between his sons in the Frankish Empire .
|840 in other calendars|
|Armenian calendar||288/289 (turn of the year July)|
|Buddhist calendar||1383/84 (southern Buddhism); 1382/83 (alternative calculation according to Buddha's Parinirvana )|
|Chinese calendar||58th (59th) cycle|
|Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam)||202/203 (turn of the year April)|
|Iranian calendar||218/219 (around March 21)|
|Islamic calendar||225/226 (October 30/31)|
|Jewish calendar||4600/01 (September 1st and 2nd)|
ab urbe condita MDXCIII (1593)
Diocletian's era : 556/557 (New Year November)
|Seleucid era||Babylon: 1150/51 (turn of the year April)
Syria: 1151/52 (turn of the year October)
|Vikram Sambat (Nepalese Calendar)||896/897 (turn of the year April)|
Politics and world events
- At the beginning of the year Ludwig the German undertook a campaign against his father Ludwig the Pious in Alemannia, after he had only allowed Bavaria to rule him. But he withdraws without a fight when the Emperor approaches with an army.
- June 20 : Ludwig the Pious , Emperor of the Franconian Empire , dies while traveling on an island on the Rhine near Ingelheim . After the death of Emperor Ludwig, his eldest son Lothar claims all of the imperial rights laid down in the Ordinatio imperii of 817 . Thereupon Ludwig the German and Karl the Bald allied . Lothar I enters into an alliance with his nephew Pippin II of Aquitaine , the son of Pippin I , who died in 838 .
- Tang Wuzong , a follower of Daoism , becomes emperor of the Tang Dynasty in China after the death of his brother Tang Wenzong . At the beginning of his rule, the influence of the eunuchs at the Chinese court is so strong that they often make the practical political decisions. However, with the help of his uncle Xuānzong and the Chancellor Li Deyu , Wuzong succeeds in asserting himself against the eunuchs and limiting their influence.
- The mountain fortress Alamut is built in Dailam .
First documentary mentions
- Ardez , Bivio , Brienz / Brinzauls , Degen , Duvin , Emmen , Felsberg , Giswil , Kriens (approximate date, the document cannot be precisely dated), Malans , Malters , Mathon , Rhäzüns , Schnaus , Sevgein , Siat , Vaz / Obervaz , Vella and Zuoz are first mentioned in a document.
- Emperor Lothar I grants the Venetians the privilege of trading on the Po River . Convoys sail to Pavia , from where the goods are shipped overland. Three rough trade routes begin here , leading to Franconia , Rome and across the Alps to Germany.
Science and culture
- The Japanese chronicle Nihon Kōki is completed. It is an official chronicle of Japan for the years 792 to 833. It is the third part of the six official stories of the empire ( Rikkokushi ). Fujiwara no Otsugu is considered to be the editor of Nihon Kōki .
Born in 840
Born around 840
- Adalhard II , Count of Metz in Moselgau († around 889 )
- Berengar I , King of Italy († 924 )
- Eudokia Ingerina , Byzantine Empress († 882 )
- Horik II , Danish Viking, king in Jutland and Schleswig († after 870)
- Hucbald , Franconian music theorist († 930 )
- Ingelger , Franconian Vice Count († 886 )
- Kliment von Ohrid , Bulgarian Archbishop († 916 )
- Notker I , Carolingian poet († 912 )
- Regino von Prüm , German monk and writer († 915 )
- Sunyer II. , Frankish count († 915 )
- Balance III. , Franconian margrave († 874 )
- 840/ 850 : Isaac ben Solomon Israeli , Egyptian physician and Jewish philosopher (died around. 932 )
Date of death secured
- January 26th : Notburga von Bühl , Scottish king's daughter, saint of the Catholic Church (* 796 )
- February 8th : Thiatgrim , Bishop of Halberstadt
- March 14th : Einhard , Franconian scholar, art expert and author, chronicler of Charlemagne (* around 770 )
- May 8 : Junna , Japanese Emperor (* 786 )
- June 6th : Agobard , Archbishop of Lyon (* around 769 )
- June 20 : Ludwig the Pious , Emperor of the Franconian Empire (* 778 )