Explore 12 historical events from 820–829.
Liú Zǒng, dharma name Dàjué (大覺), formally Duke of Chǔ (楚公), was a general of the Tang dynasty. He took over control of Lúlóng Circuit in 810 after killing his father Liú Jì (劉濟) a…
Liu Zong, general of the Tang dynasty
Li Tongjie (李同捷) was a general of the Chinese Tang dynasty. After the death of his father Li Quanlüe (李全略) in 826, Li Tongjie tried to take over Henghai Circuit, which his father h…
Li Tongjie, general of the Tang Dynasty
Saichō was a Japanese Buddhist monk credited with founding the Japanese Tendai school of Buddhism. He was awarded the posthumous title of Dengyō Daishi (伝教大師).
Saichō, Japanese Buddhist monk (born 767)
Shi Xiancheng was a general of the Chinese Tang dynasty, who ruled Weibo Circuit semi-independently from the imperial government.
Shi Xiancheng, general of the Tang Dynasty
Charles the Bald was king of West Francia (843–77), king of Italy (875–77) and emperor of the Carolingian Empire (875–77). After a series of civil wars during the reign of his fath…
Charles the Bald, Holy Roman Emperor (died 877)
Emperor Heizei , also known as Heijō-tennō, was the 51st emperor of Japan, according to the traditional order of succession. Heizei's reign lasted from 806 to 809.
Heizei, Japanese emperor (born 773)
Pope Eugene II was the bishop of Rome and ruler of the Papal States from 6 June 824 to his death on 27 August 827. A native of Rome, he was chosen by nobles to succeed Paschal I as…
Pope Eugene II
Li Yong (李鄘), courtesy name Jianhou (建侯), was an official of the Chinese Tang dynasty, briefly commissioned as a chancellor during the reign of Emperor Xianzong — but declining the…
Li Yong, chancellor of the Tang Dynasty
Ali ibn Muhammad al-Hadi, also known as Ali al-Naqi, was a descendant of the Islamic prophet Muhammad and the tenth Imam in Twelver Shia Islam, succeeding his father Muhammad al-Ja…
Ali al-Hadi, Hijazi (Western Arabian), 10th of the Twelve Imams (died 868)
Michael II, called the Amorian and the Stammerer, reigned as Byzantine emperor from 25 December 820 to his death on 2 October 829, the first ruler of the Amorian dynasty.
Michael II, Byzantine emperor
Theophilos was Byzantine Emperor from 829 until his death in 842. He was the second emperor of the Amorian dynasty and the last emperor to support iconoclasm.
Theophilos succeeds his father Michael II as Byzantine Emperor.
Li Tongjie (李同捷) was a general of the Chinese Tang dynasty. After the death of his father Li Quanlüe (李全略) in 826, Li Tongjie tried to take over Henghai Circuit, which his father h…
Li Tongjie, general of the Tang Dynasty
Shi Xiancheng was a general of the Chinese Tang dynasty, who ruled Weibo Circuit semi-independently from the imperial government.
Shi Xiancheng, general of the Tang Dynasty
Michael II, called the Amorian and the Stammerer, reigned as Byzantine emperor from 25 December 820 to his death on 2 October 829, the first ruler of the Amorian dynasty.
Michael II, Byzantine emperor
Ali ibn Muhammad al-Hadi, also known as Ali al-Naqi, was a descendant of the Islamic prophet Muhammad and the tenth Imam in Twelver Shia Islam, succeeding his father Muhammad al-Ja…
Ali al-Hadi, Hijazi (Western Arabian), 10th of the Twelve Imams (died 868)
Pope Eugene II was the bishop of Rome and ruler of the Papal States from 6 June 824 to his death on 27 August 827. A native of Rome, he was chosen by nobles to succeed Paschal I as…
Pope Eugene II
Pope Valentine was the bishop of Rome and leader of the Papal States for two months in 827. He was unusually close to his predecessor, Eugene II, rumoured to be Valentine's father …
Pope Valentine (born 800)
Emperor Heizei , also known as Heijō-tennō, was the 51st emperor of Japan, according to the traditional order of succession. Heizei's reign lasted from 806 to 809.
Heizei, Japanese emperor (born 773)
Charles the Bald was king of West Francia (843–77), king of Italy (875–77) and emperor of the Carolingian Empire (875–77). After a series of civil wars during the reign of his fath…
Charles the Bald, Holy Roman Emperor (died 877)
Saichō was a Japanese Buddhist monk credited with founding the Japanese Tendai school of Buddhism. He was awarded the posthumous title of Dengyō Daishi (伝教大師).
Saichō, Japanese Buddhist monk (born 767)
Liú Zǒng, dharma name Dàjué (大覺), formally Duke of Chǔ (楚公), was a general of the Tang dynasty. He took over control of Lúlóng Circuit in 810 after killing his father Liú Jì (劉濟) a…
Liu Zong, general of the Tang dynasty
Li Yong (李鄘), courtesy name Jianhou (建侯), was an official of the Chinese Tang dynasty, briefly commissioned as a chancellor during the reign of Emperor Xianzong — but declining the…
Li Yong, chancellor of the Tang Dynasty