The Iliad (sometimes referred to as the Song of Ilion or Song of Ilium) is an epic poem in dactylic hexameters, traditionally attributed to Homer. Set in the Trojan War, the ten-year siege of Ilium by a coalition of Greek states, it tells of the battles and events during the weeks of a quarrel between KingAgamemnon and the warrior Achilles. Although the story covers only a few weeks in the final year of the war, the Iliad mentions or alludes to many of the Greek legends about the siege. Along with the Odyssey, also attributed to Homer, the Iliad is among the oldest extant works of Western literature, and its written version is usually dated to around the eighth century BC. The Iliad contains over 15,000 lines, and is written in Homeric Greek, a literary amalgam of Ionic Greek with other dialects.