From Greek mythology, the goddess of strife and discord. According to one account (but which is disputed whether it was in the Iliad), Eris was angry over not being invited to the wedding of Peleus and Thetis, so she threw an apple marked For the fairest onto the banquet table -- and this "apple of discord" began a chain of events that led to the Trojan War in which a Greek expeditionary force, commanded by Agamemnon and with luminary leaders such as Odysseus, Ajax, Menelaos, and many others, set out to win back Helen of Troy.