A prime with an Arabic trail

By 659, the caliphate had fully absorbed the Sasanian Empire. Persia vanished from the political map for centuries as Islam became the dominant religion of the region.

659 is divisible only by 1 and itself. In numerology, primes are considered 'pure' and 'indivisible' — impossible to break down, like a strong character.

0+6+5+9 = 20 → 2. Two is the number of partnership and diplomacy. The leading zero amplifies this — the number opens from emptiness, reaching toward another.