Here we have
another age-old ideogram. In ancient Greece this sign represented the
the principle of beauty and sexual love. As a sign for
Aphrodite (and maybe her predecessors Astarte and
Ishtar) it was also drawn and . Later the same goddess or planet was drawn .
At the end of the Middle Ages this sign was sometimes used as a time sign by the alchemists to signify night. The sign could also stand for copper although for this meaning it was usually drawn .
The sign is commonly used in modern technical, electrical, and military systems. Sometimes is used for mine on maps.