Historical clue formulations

• "Duino Elegies" poet — 2025-12-12
• Poet Rainer Maria ___ — 2024-05-04
• "Sonnets to Orpheus" poet — 2024-02-23
• Poet Rainer Maria ___ — 2021-10-24
• Rainer Maria ___, writer of "Letters to a Young Poet" — 2020-02-02
• "Sonnets to Orpheus" poet — 2018-08-19
• "The Book of Hours" poet — 2009-03-27
• "The Sonnets of Orpheus" poet — 2005-02-13
• "Sonnets to Orpheus" poet — 1998-06-06
• Poet who wrote "The Sonnets to Orpheus" — 1997-02-12