Heraldry is the system of designing, displaying, and interpreting coats of arms and other armorial bearings. Originating in medieval Europe, it was used to identify individuals, families, and institutions, especially in battle and tournaments. Heraldry follows specific rules and traditions, with elements like shields, crests, mottos, and supporters, each carrying symbolic meaning. Today, it remains in use for royal families, military units, and organizations, preserving a rich visual and historical tradition.