by the scar on his ankle
20 years
(Odysseus is a Greek word) ... Odysseous = ΟΔΥΣΣΕΑΣ or/and ΟΔΥΣΣΕΥΣ
The sun god in Greek mythology, Helios, had sacred cattle. If someone killed and ate the meat of the cattle, they would be cursed.
An example of dramatic irony in The Odyssey is when Odysseus, disguised as a beggar, returns home and only his faithful dog Argos recognizes him. The readers know the truth while the characters are unaware, creating tension and suspense as the story unfolds.