Historical clue formulations

• Muse of comedy and idyllic poetry — 2023-06-25
• Muse of comedy — 2012-11-03
• Name shared by a Grace and a Muse — 2006-12-02
• Comedian's Muse — 2005-11-16
• Muse of comedy — 2003-03-25
• Sister of Clio — 2002-01-12
• Muse of comedy — 2000-12-29
• Classic theater name — 2000-08-05
• Sister of Calliope — 2000-05-28
• Sister of Clio — 1999-04-10
• Sister of Erato — 1996-01-06