Produce a sentence which has a cefr level of "c1" that contains the following words: races, mosque, possession.
THE MOSQUE OF MAKKAH SEEN FROM THE EAST

The subsequent advance of the Arabians fanwise through Western Asia and North Africa brought them into possession of numberless standing and ruined structures representing a high artistic development and, what is more essential, it put them in control of the living technical knowledge and skill inherited by members of the conquered races from ages past.