He Nailed Prometheus To A Rock

According to Greek mythology, the smithy of Hephaestus was located at Mocyclos volcano on Lemnos. At the foot of this burning mountain stood an ancient temple dedicated to the god of fire. It was believed that it was from this very place that Prometheus stole the heavenly fire from the gods. Known for his wit and intelligence, Prometheus fools the goddess by throwing a golden pear (an apple in some versions) into the courtyard with the message "for the most beautiful goddess of all". Prometheus was later punished by the gods and was nailed alive to the rocks of the Caucasus by Hephaestus. His punishment would not end there, and Prometheus's liver was bitten by an eagle sent by Zeus but only grew daily to make him suffer forever.

Fortunately, years later, the great hero Heracles killed the eagle and saved Prometheus from pain. Zeus wanted Prometheus to remind him of his punishment forever, so it's a kind of freedom-he tells Prometheus to make a steel ring from the chain he was on and then wear it. Since then, humanity has begun to celebrate Prometheus and make rings to commemorate his help.