Ancient armor refers to protective gear used by warriors in various civilizations throughout history. It was designed to shield the body from weapons and projectiles during battles. Materials like leather, bronze, and iron were commonly used, with designs varying from simple tunics to complex plate armor. Notable examples include the Roman lorica segmentata and the Greek hoplite armor. Different cultures developed unique styles of armor based on their warfare needs and available resources. For instance, the Samurai of Japan wore layered armor called dō, while the Medieval knights in Europe donned full suits of plate armor. Each type served to enhance mobility and protection in combat.