During the Middle Ages, knights used a coat of arms to identify themselves. One man in armor looked a lot like another, so the coat of arms was used to identify a knight in battle. In a society where few people could read and write, pictures were very important. A coat of arms was more like a label for instant identification than it was like a painting. You wanted to know instantly who was coming toward you, so you could know which side he was on. Coats of arms later took on further significance and meanings. They also became a way of showing membership in the aristocracy, after they lost their significance in warfare.

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