Original sentence: The Empire moved from defending against external enemies to reconquest of territories formerly lost.The accession of Basil I to the throne in 867 marks the beginning of the Macedonian dynasty, which would rule for the next two and a half centuries.This dynasty included some of the most able emperors in Byzantium's history, and the period is one of revival and resurgence
Edited sentence: (the Armenian Dynasty of Byzantium)The dynasty was named after its founder, Basil I the Macedonian who came from the theme of Macedonia.The dynasty's founder and each of the 17 emperors of the dynasty was of Armenian descent, hence the dynasty is also referred to by some authors as the Armenian Dynasty