Historical clue formulations

• Horace's "Ars ___" — 2024-04-18
• Horace's "Ars ___" — 2010-05-17
• Horace's "Ars ___" — 2010-03-17
• Horace's "Ars ___" — 2005-01-20
• Virgil's writings — 1994-04-09