Gaius Valerius Flaccus' Argonautica is an epic poem written in Latin in the 1st century AD. It tells the story of the voyage of the Argonauts, led by Jason, in search of the Golden Fleece. The
From Wikipedia
Gaius Valerius Flaccus was a 1st-century Roman poet who flourished during the "Silver Age" under the Flavian dynasty, and wrote a Latin Argonautica that owes a great deal to Apollonius of Rhodes' more famous epic.