50 questions on how the empire defended itself — the Theodosian Walls, Greek fire, the Varangian Guard, the theme and tagmata armies, and a doctrine that treated battle as a failure of statecraft.
Score 80% or higher to earn a certificate.
The 1453 siege is deliberately left to its own quiz. This one covers the walls, the fleet, the manuals, and the battles from Yarmouk to Myriokephalon.