Hyacinthus was the son of the muse Clio and the King of Macedonia Pierus.
He was considered to be the partner both the Greek god Apollo and Zephyrus, the god of the winds; those two deities were competing each other who will gain the favor of the handsome young man.
One day, Apollo was teaching Hyacinth how to throw the discus and, on his striving to impress his lover, Apollo threw the discus with all his force. Immediately, Hyacinth tried to run after the discus, but was unfortunate enough to get struck by it and injure himself severely!
Despite Apollo's effort to save the young man's life with herbs, in the end the young man passed away. From the blood that was shed, Apollo created a beautiful flower, each petal of which had the letters "AI" inscribed- they were symbolizing Apollo's painful cry...