Original sentence: By the seventh century, centrally-planned churches had been built and a more complicated niched buttress and radiating Hrip'simé style had formed.By the time of the Arab invasion, most of what we now know as classical Armenian architecture had formed.From the 9th to 11th century, Armenian architecture underwent a revival under the patronage of the Bagratid Dynasty with a great deal of building done in the area of Lake Van, this included both traditional styles and new innovations.Gregory the Illuminator, and were often built on top of pagan temples, and imitated some aspects of Armenian pre-Christian architecture.It wad during this time that the first major monasteries, such as Haghpat  and Haritchavank were built.Many new cities and churches were built during this time, including a new capital at Lake Van and a new Cathedral on Akdamar Island to match.Ornately carved Armenian Khachkars were developed during this time.The early churches were mostly simple basilicas, but some with side apses.The first Armenian churches were built between the 4th and 7th century, beginning when Armenia converted to Christianity, and ending with the Arab invasion of Armenia.The first Armenian churches were built on the orders of St
Edited sentence: Armenian architecture underwent a revival under the patronage of the Bagratid dynasty with many buildings erected in the area of Ani and Lake Van: they included both traditional styles and new innovations.By the seventh century, centrally-planned churches had been built and the more complicated niched buttress and radiating Hrip'simé style had formed.By the time of the Arab invasions, most of what we now know as classical Armenian architecture had formed.Gregory the Illuminator, were often built on the sites of destroyed pagan temples, and imitated some aspects of Armenian pre-Christian architecture.It wad during this time that the first major monasteries, such as Haghpat  and Haritchavank were founded.Many new cities and churches were built during this time, including a new capital at Lake Van and a cathedral on Akdamar Island to match.Ornately carved Armenian khachkars were developed during this time.The early churches were mostly simple basilicas, some with side apses.The first Armenian churches were built during the lifetime of St.The first period, from the 4th to the 7th century, began with Armenia's conversion to Christianity, and ended after the Arab invasions of Armenia.The second pariod - from the 9th to the 11th century