The oracle given to King Acrisius foretold that he would be killed by his grandson, the son of his daughter Danaë. To prevent this, Acrisius locked Danaë away to stop her from having children, but Zeus visited her in the form of a shower of gold, and she bore Perseus. Despite Acrisius's efforts to avoid the prophecy, Perseus accidentally killed him with a discus during a competition, thus fulfilling the oracle's prediction. This story highlights the inevitability of fate in Greek mythology.

How the Oracle Was Fulfilled

• Acrisius received a prophecy that his daughter's son would kill him.
• He tried to avoid this fate by imprisoning Danaë and later sending her and Perseus adrift in a chest.
• Perseus survived and grew up with divine help.
• During a discus competition at funeral games, Perseus accidentally struck Acrisius with the discus, killing him and fulfilling the oracle.

This fulfillment underscores the theme that fate cannot be escaped despite human intervention.