Ithaca enters Greek literature in the Catalogue of Ships of the Iliad. There Homer makes Odysseus, son of Laertes, leader of the men who dwell on the rocky island of Ithaca, the wooded island of Neriton, Same and Zacynthus, and the coastal places of the Cephallenians. The Homeric kingdom is larger than the modern town or island. It belongs to the wider world of the Ionian islands, where mountains rise above narrow seas and local communities know one another across the water. Ithaca's heroic power rests not upon horses or broad fields but upon seamanship, household loyalty and the intelligence of its king.

Odysseus himself gives the island's most famous description when he speaks to the Phaeacians. He calls Ithaca bright or clearly seen, a land with the quivering-leafed mountain Neriton rising above it. Around it lie Doulichium, Same and wooded Zacynthus. Ithaca itself lies close to the mainland and faces towards dusk, while the other islands turn towards the dawn. In another passage, Odysseus boasts that Ithaca has no wide horse runs and is better for goats than for horses, yet no land is sweeter to him. Penelope echoes the sentiment when she says that Ithaca may be rugged and poor, but she loves it because it is her home. The island's worth is measured by memory and kinship rather than wealth.

The description is simple enough to be remembered and difficult enough to map. Modern Ithaki is mountainous rather than low-lying and lies east of Cephalonia rather than furthest west. Ancient readers noticed the problem and offered explanations. Strabo identified Homer's Ithaca with the modern island, but reinterpreted the difficult words to mean close to the mainland and furthest north rather than furthest west. Others preferred nearby lands. Wilhelm Dörpfeld placed Homeric Ithaca on Lefkada. Robert Bittlestone later argued that Paliki, the western peninsula of Cephalonia, had once been a separate island. Geological research has complicated that theory, and the question remains part of the continuing search for Homer's geography.

Whatever its modern coordinates, mythic Ithaca is a world of recognisable places. Phorcys Bay takes its name from the old sea god and lies near the cave of the Naiads. The ship of the Phaeacians enters the bay at night, guided by the will of the gods rather than by a steersman. Two headlands jut into the sea. A cave sacred to the Naiads stands near the shore, its inner chamber filled with jars of stone and bees, and its entrance framed by two springs. Odysseus hides beneath a leafy olive tree as the treasure of Phaeacia is piled beside him.

The island's paths lead across ridges and goat tracks to Eumaeus's hut. The loyal swineherd lives on Raven's Rock beside the Spring of Arethusa, the place Athena mentions when she directs Odysseus towards the servant who remains faithful while the suitors consume the palace. Odysseus first appears on Ithaca as an old beggar, wearing a squalid cloak and leaning on a staff. His royal home seems distant, and the disguise tests the character of everyone he meets.

Before entering the palace, Odysseus approaches Laertes in his garden. The old king has withdrawn from public life, grieving for his son and wife. He works among his fruit trees, vines and beds of herbs with patched clothing and a goatskin cap on his head. The land around him carries the family's labour, and the recognition between father and son takes place among the trees. Ithaca's landscape becomes the proof of kinship: Laertes knows Odysseus by the scar, the memory and the grief they share.

Odysseus's own palace stands on a hill. Its household includes Penelope's upper chamber, the storerooms, the halls where the suitors feast and the courtyard where herds are brought for sacrifice. Odysseus's bed was built around an olive trunk rooted in the ground, decorated with gold, silver and purple, and so immovable that only the king who made it would know its secret. Penelope orders the bed moved to test the stranger. Odysseus protests that the bed cannot be moved without destroying the olive tree around which it was built. His anger proves his identity before his wife's recognition.

The suitors occupy the palace as though they own it. They number over a hundred and come from Ithaca, Dulichium, Same, Zacynthus and the surrounding islands. They feast daily upon Odysseus's herds, drink his wine and compete for Penelope's hand. Telemachus, still young and testing his own authority, travels to Pylos and Sparta to seek news of his father. His journey and the suitors' plot to ambush him create a counter-journey that mirrors Odysseus's return.

Ithaca's assembly and public spaces show the island as a functioning kingdom. The people gather to discuss Telemachus's complaints against the suitors. The herald Halitherses speaks. Mentor and other elders advise. Eumaeus's swine pens, Melanthius's goat herds, Philoetius's cattle and the palace storerooms make the economy visible. Ithaca is not a fantasy island like Scheria or Ogygia. It is rough, agricultural and recognisably human.

The Odyssey's final books turn that recognisable landscape into the stage for vengeance and reunion. Odysseus enters the hall disguised as a beggar and battles Irus, the brawling suitors' favourite, on the threshold. He sees his old hunting dog Argos lying neglected on a dung heap. The dog recognises his master, wags his tail, drops his ears and dies after waiting twenty years for this one recognition. The scene proves that Ithaca's world of beasts, slaves and family retain the memory that the suitors have lost.

The bow contest gives Ithaca its ritual climax. Penelope brings out Odysseus's bow and announces that she will marry the man who can string it and shoot an arrow through a row of axe heads. The suitors fail, mocking and delaying, while Telemachus sets the axes in order. Odysseus strings the bow with ease, and the hall becomes a battlefield. He and Telemachus slay the suitors, Eurycleia identifies the old nurse's loyalty and order begins to return.

The reunion with Penelope turns upon the olive-wood bed. She hesitates, fearing that the man before her may be a god in disguise. Odysseus's account of the bed's construction convinces her. The tree rooted in the soil and the marriage rooted in the household become one image. Ithaca is not saved by conquest alone. It is saved by the memory of domestic space.

The Book of the Dead concludes the epic on the island. Hermes leads the souls of the suitors to the Underworld, where Agamemnon and Achilles hear the story of Odysseus's return. Odysseus seeks Laertes in the garden, Athena brings peace to the households that threaten revenge, and Zeus casts thunder to seal the settlement. Ithaca ends the Odyssey as the place where the violence of the Trojan War finally becomes household reconciliation.

In historical tradition, Ithaca acquired a cult and civic identity around the memory of Odysseus. Ancient coins from the island show his head, and inscriptions mention games called the Odysseia. The ancient world largely treated the modern island as Homer's home. Later travellers and archaeologists searched for the palace, and the archaeological site at Agios Athanasios in northern Ithaki has been connected to the Bronze Age remains. The question remains debated because Homer's geography and modern topography do not match without interpretation.

The island's modern identity has embraced the myth. Vathy, the main harbour, presents itself as Odysseus's capital. The Cave of the Naiads, Stavros, the Polis cave and the so-called School of Homer all appear in the modern geography of the legend. Tourism turns the landscape into a narrative map, and the name Ithaki has become inseparable from the idea of homecoming.

Ithaca also outgrew its geography in later literature. The Odyssey itself makes it a symbol of return, so C.P. Cavafy's poem Ithaka can turn the island into the spiritual destination of a long life rather than a literal stop. Modern novelists, filmmakers, games and retellings continue to use Ithaca as the place where wandering ends. In Homer's own words, even if another land may be richer, Ithaca is sweeter because it is one's own.

The island's power lies in its ordinary beauty. It is not the palace of wealth, the island of pleasure, the underworld or the sea of monsters. It is the home that changes while the wanderer changes more. Its olive bed, goat paths, swine pens, dog and old father carry memory when names and appearances fail. Odysseus fights monsters beyond the world, but his greatest labour is to return to this small place and make it again his own.