Complex sentence: It is an old monastery that can be traced back to the time when Arab Muslim started to invade the region in 636 A.D. Till recently, the monastery was housed by its monks who preferred to worship within its vast expanse and labor in its orchards and farms.
Split into simpler sentences: It is an old monastery that can be traced back to the time when Arab Muslim started to invade the region in 636 AD. Until recently, the monastery was housed by its monks who preferred to worship within its vast expanse and labor in its orchards and farms.