Simplify the following text for a Grade 11 native English-speaking person.
Original: Much of western Warwickshire , including that area now forming part of Birmingham and the West Midlands , was covered by the ancient Forest of Arden ( most of which was cut down to provide fuel for industrialisation ) .
Simplified: Historically much of western Warwickshire , was covered by the ancient Forest of Arden ( although most of this was cut down to provide fuel for industrialisation in the 17th to 19th centuries ) .