No one but Odysseus survives the journey back to Ithaca. All his men on his ship and all men on the other ships die during the voyage.
Lotus flowers that make the forget everthing.
Elpenor asks Odysseus to cremate and bury his body, putting his oar above his grave.
The last of Odysseus' crew drown after Zeus splinters the boat with lightning.
because they ate the sun god's cattle