Template: Otheruses1 Template: Refimprove The Iliad (Template: Lang-el, Iliás) is an epic poem recounting significant events during a portion of the final year of the Trojan War — the Greek siege of the city of Ilion (Troy) — hence the title (“pertaining to Ilios”).
In twenty-four scrolls, containing 15,693 lines of dactylic hexameter, it tells the wrathful withdrawal from battle of Achilles, the premiere Greek warrior, after King Agamemnon dishonoured him — an internecine quarrel disastrous to the Greek cause. Powell (who links its transcription to the invention of the Greek alphabet); however, Martin West and Richard Seaford, posit either the seventh or the sixth centuries BC, as the composition time(s) of this oldest extant literary work of Ancient Greece.
Nostos (νόστος — homecoming) occurs seven times in the poem (II.155, II.251, IX.413, IX.434, IX.622, X.509, XVI.82); thematically, the concept of homecoming is much explored in Ancient Greek literature, especially in the post-war homeward fortunes experienced by Atreidae, Agamemnon, and Odysseus (see the Odyssey), thus, nostos is impossible without sacking Troy — King Agamemnon’s motive for winning, at any cost.
Kleos (κλέος — glory, fame) is the concept of glory earned in heroic battle;  for most of the Greek invaders of Troy, notably Odysseus, kleos is earned in a victorious nostos (homecoming), yet not for Achilles, he must choose one reward, either nostos or kleos.
 In the poem, aphthiton (ἄφθιτον — imperishable) occurs five times (II.46, V.724, XIII.22, XIV.238, XVIII.370), each occurrence denotes an object (i.e.
Agamemnon’s sceptre, the wheel of Hebe’s chariot, the house of Poseidon, the throne of Zeus, the house of Hephaistos); translator Lattimore renders kleos aphthiton as forever immortal and as forever imperishable — connoting Achilles’s mortality by underscoring his greater reward in returning to battle Troy.
In Book I, the Greek troubles begin with King Agamemnon’s dishonourable, unkingly behaviour — first, by threatening the priest Chryses (1.11), then, by aggravating them in disrespecting Achilles, by confiscating Bryseis from him (1.171).