Roman Emperor Theodosius I dies in Mediolanum (now Milan, Italy), on January 17, 395 CE, leading to the division of the Roman Empire between his two sons. and marking the end of a unified Roman Empire.
Arcadius, the elder son, took control of the Eastern Roman Empire , with its capital in Constantinople, while Honorius ruled the Western Roman Empire with its capital in Ravenna). The Western Roman Empire declined rapidly, falling in 476 AD, while the Eastern (Byzantine) Empire survived for another thousand years.
The Western Roman Empire collapsed due to a combination and a widened gap between rich and poor. The traditional "fall" of the Western Roman Empire is thought to be in 476 AD when Romulus Augustulus, the last emperor, was deposed by the Germanic general Odoacer. Many Roman culture and institutions, especially the Church, persisted as they transformed into medieval Europe.