I WONDER - Why Did Castles Have Drawbridges?

The video explains the defensive mechanisms of castles, focusing on drawbridges and portcullises. Drawbridges, operated by ropes or chains, could be lifted or swung to prevent enemy entry. Behind them, portcullises, heavy gates reinforced with iron, could be quickly dropped to trap or deter attackers, often featuring spikes for added defense.

Explain how drawbridges contributed to the security of a castle.

What materials were commonly used to reinforce a portcullis?