Historical clue formulations

• Horse, in Latin — 2023-01-24
• Horse genus — 2018-08-01
• Group of horses? — 2017-06-02
• 1975 Tony-winning play with a Latin name — 2014-12-11
• Magazine subtitled "The Horse Owner's Resource" — 2011-10-21
• 1977 Richard Burton film — 2009-11-20
• Horse genus — 2007-09-09
• Magazine subtitled "The Horse Owner's Resource" — 2006-10-27
• 1975 Tony winner for Best Play — 2003-06-18
• Horse play — 2000-11-24
• Play with horses? — 1998-10-01
• Horse play? — 1995-12-28