Why were cylinder seals made?

Cylinder seals were made primarily for purposes of identification and authentication in ancient cultures, particularly in Mesopotamia. They served as a form of signature or personal mark, allowing individuals to seal important documents or goods, thus preventing tampering and ensuring authenticity. Additionally, the intricate designs often depicted myths, deities, or scenes of daily life, serving a decorative function and conveying the owner's status or beliefs. Overall, they were both practical and symbolic objects in ancient societies.