Simplify the following text for a Grade 9 native English-speaking person.
Original: It first became a region in 1956 , when the old region of Normandy was split , into a part to the west ( and south ) , the current Lower Normandy , and Upper Normandy , more to the east and the north .
Simplified: It was created in 1956 , when the Normandy region was divided into Lower Normandy and Upper Normandy .