He did more than detract from it, he took it over, lock stock and barrel.
Alexander the Great defeated the Persian empire
Alexander conquered the Persian Empire.
The Macedonian Greek Empire of Alexander the Great conquered the Persian Empire and incorporated all of its lands.
Alexander the Great's conquest of the Persian Empire created an empire reaching from Egypt to India.
Persian Empire
The Persian Empire.
Persian Empire
Alexander the Great extended his empire by conquering the Persian Empire and turning it into an empire of his own.
Alexander the great
Alexander the Great
Alexander the Great.
Alexander the Great.