Complex sentence: Aksumite architecture flourished in the region from the 4th century BC onward, persisting even after the transition of the Aksumite dynasty to the Zagwe in the 12th century, as attested by the numerous Aksumite influences in and around the medieval churches of Lalibela.
Split into simpler sentences: Aksumite architecture flourished in the region from the 4th century BC onward. It persisted even after the transition from the Aksumite dynasty to the Zagwe dynasty in the 12th century, as attested by the numerous Aksumite influences in and around the medieval churches of Lalibela.