4th century YearDateEvent3013 SeptemberSaint Marinus establishes the Most Serene Republic of San Marino, declaring independence from the Roman Empire. The City of San Marino is the capital.304 Guangwen establishes Han Zhao in China.Wu establishes Cheng Han in China. Chengdu is the capital.317 Yuan establishes the Eastern Jin dynasty in China. Jiankang is the capital.319 Ming establishes Later Zhao in China.320 Ming establishes Former Liang in China.32418 SeptemberConstantine the Great (Flavius Valerius Aurelius Constantinus) reunites the Roman Empire. Nicomedia (now İzmit, Turkey) becomes the capital.33011 MayRoman Emperor Constantine the Great builds a new capital for the Roman Empire at Byzantium which he renames Constantinopolis (now Istanbul, Turkey).337 Wenming establishes Former Yan in China.351 Jingming establishes Former Qin in China.358 Franks are allowed to settle in Toxandria (present-day Belgium).370 The Bosporan Kingdom is disestablished.Huns appear north of the Black Sea.375 Fall of the Kushan Empire in India.384 Chengwu establishes Later Yan in China.Wuzhao establishes Later Qin in China. Chang'an is the capital.Liewen establishes Western Yan in China.385 Xuanlie establishes Western Qin in China.386 Yiwu establishes Later Liang in China. Guzang is the capital.Daowu establishes the Northern Wei dynasty in China.39517 JanuaryAt his death, Roman Emperor Theodosius I (Flavius Theodosius) permanently splits the Roman Empire between his two sons: Flavius Arcadius rules the Eastern Roman Empire from Constantinopolis (now Istanbul, Turkey), and Flavius Honorius rules the Western Roman Empire from Mediolanum (now Milan, Italy).397 Wu establishes Southern Liang in China.Duan Ye establishes Northern Liang in China.398 Xianwu establishes Southern Yan in China.
4th century YearDateEvent3013 SeptemberSaint Marinus establishes the Most Serene Republic of San Marino, declaring independence from the Roman Empire. The City of San Marino is the capital.304 Guangwen establishes Han Zhao in China.Wu establishes Cheng Han in China. Chengdu is the capital.317 Yuan establishes the Eastern Jin dynasty in China. Jiankang is the capital.319 Ming establishes Later Zhao in China.320 Ming establishes Former Liang in China.32418 SeptemberConstantine the Great reunites the Roman Empire. Nicomedia (now İzmit, Turkey) becomes the capital.33011 MayRoman Emperor Constantine the Great builds a new capital for the Roman Empire at Byzantium which he renames Constantinopolis (now Istanbul, Turkey).337 Wenming establishes Former Yan in China.351 Jingming establishes Former Qin in China.358 Franks are allowed to settle in Toxandria (present-day Belgium).370 The Bosporan Kingdom is disestablished.Huns appear north of the Black Sea.375 Fall of the Kushan Empire in India.384 Chengwu establishes Later Yan in China.Wuzhao establishes Later Qin in China. Chang'an is the capital.Liewen establishes Western Yan in China.385 Xuanlie establishes Western Qin in China.386 Yiwu establishes Later Liang in China. Guzang is the capital.Daowu establishes the Northern Wei dynasty in China.39517 JanuaryAt his death, Roman emperor Theodosius I permanently splits the Roman Empire between his two sons: Arcadius rules the Eastern Roman Empire from Constantinopolis (now Istanbul, Turkey), and Honorius rules the Western Roman Empire from Mediolanum (now Milan, Italy).397 Wu establishes Southern Liang in China.Duan Ye establishes Northern Liang in China.398 Xianwu establishes Southern Yan in China.
D
(Flavius Valerius Aurelius Constantinus)
R
Emperor Theodosius I (Flavius Theodosius)
emperor Theodosius I
D
Flavius
D
Flavius