Homer, the Greek poet, wrote in his classic work, of a golden apple that was marked For the Most Beautiful. Three women claimed the golden apple: Athena, Hera, and Aphrodite. Paris awarded it the Aphrodite for helping him kidnap the beautiful Helena. Thus the Trojan War began.
From this the expression apple of discord began and refers to anything which causes discord or trouble.
From this the expression apple of discord began and refers to anything which causes discord or trouble.