Hēraklēs is involved here, however indirectly, in the story that tells how Odysseus once upon a time acquired his famous bow. The epithet epi-histōr describing Hēraklēs in this context, at O.21.026, can be interpreted as an agent noun: ‘one who has witnessed great events’ (Ἡρακλῆα μεγάλων ἐπιίστορα ἔργων). As an agent noun, histōr is derived not only from eidénai ‘know’ but also from ideîn ‘see’: a case in point is the meaning of ep-ideîn at I.22.061, ‘having witnessed many evil events’ (κακὰ πόλλ’ ἐπιδόντα).