Complex sentence: The resulting unified polity in the 7th and 8thcenturies led to a rapid expansion of Arab power and influence to the northwest Indian subcontinent, across Central Asia, the Middle East, North Africa, southern Italy, the Iberian peninsula, and the Pyrenees.
Split into simpler sentences: The resulting unified polity in the seventh and eighth centuries led to a rapid expansion of Arab power. This influence stretched from the northwest Indian subcontinent, across Central Asia, the Middle East, North Africa, southern Italy, and the Iberian peninsula, to the Pyrenees.