"Sing of the wooden horse
Epeus built with Athena’s help, the cunning trap that
good Odysseus brought one day to the heights of Troy,
filled with fighting men who laid the city waste.
Sing that for me – true to life as it deserves –
and I will tell the world at once how freely
the Muse gave you the gods’ own gift of song."
Stirred now by the Muse, the bard launched out
in a fine blaze of song.

– Homer

The Odyssey, Book 8, lines 552-560. The disguised Odysseus requests the bard Demodocus to entertain him with his own exploits in the Trojan War. He asks him to sing of the "cunning trap" of the wooden horse built by Epeus with Athena’s help and used by Odysseus to deceive the Trojans and take their city.