Odysseus left Calypso's island when Athena told Zeus(her father) that he had been left there and was longing to his return to Ithaca and to see his wife Penelope and his son Telemachus. So Zeus sent Hermes to tell Calypso to let him go after ten years of being on the island. When she realizes that she can't defy the Gods, she tells Odysseus to make a large raft and sail to Ithaca. At first he doesn't believe her to have good intentions for him until she swears upon the river Styx that she will aid him in setting sail.
on a raft of trees
Hermes tells Calypso she must let Odysseus go.Calypso helps Odysseus build a raft to leave the island.
an axe and adze
Odysseus wants to leave Calypso and her island because he wants to go home to Ithaca. After the Trojan war, his ship was tossed off course and he has been trying to finish his journey since.
She sensed she would have to let Odysseus leave.
Calypso wants Odysseus to stay with her on the island forever.
Odysseus met Calypso on her lush island of Ogygia.
Calypso allows Odysseus to leave her island after Athene asks Zeus to tell Calyspo that if she doesnt allow Odysseus to leave her island that if she doesnt that Zeus will strike her with a thunderbolt and kill her as he is not a prisoner to her island and need to get home to be with Penelope (his wife). Zeus sends Hermes the messenger God to tell Calypso. Although Calypso is furious and doesnt want Odysseus to leave, she lets him because obviously she doesnt want to die so she helps him build a raft and gives him gifts for his journey home.
Calypso
Odysseus was weeping on the shore of Calypso's island, feeling trapped and longing to return home. Hermes arrived to deliver Zeus's message that Odysseus must be allowed to leave the island and continue his journey back to Ithaca.
Calypso
Calypso is the last one to keep Odysseus against his will on her island. The name of the island Calypso kept Odysseus on was Ogygia.