Byzantine Empire (9h 35min, sep 30, 330 y – 11h 1min, may 21, 1453 y)
Description:
a separation occurred between the western and eastern parts of the Roman EmpireAdded to timeline:
Date:
9h 35min, sep 30, 330 y
11h 1min, may 21, 1453 y
~ 1123 years