In the beginning of the story “oedipus is king” the priest tells oedipus that thebes is sinking beneath the waves of death. Not only that but there was a deadly plague in their city.
Later on in the story oedipus became king. The reason he became king was because he saved them from Sphinx by solving the riddle. i think it's important because solving the riddle is what made him king
The only way to get rid of the plague that was going on was to murder the past king. There was a problem though, the Sphinx riddles stopped their ears and brought destruction. The riddles were making it harder to find the killer and the plague couldn’t be stopped until they found the killer which i think is important.