Historical clue formulations

• Kind of monkey used in medical research — 2022-09-06
• Kind of monkey — 2021-07-02
• ___ monkey — 2021-03-21
• Monkey named for a king in Greek myth — 2019-08-28
• ___ monkey — 2019-03-17
• Animal that shares its name with a king of Thrace in the "Iliad" — 2019-03-14
• Monkey often used in research — 2018-01-30
• ___ monkey — 2017-09-17
• ___ monkey — 2017-08-21
• ___ factor — 2014-01-09
• ___ monkey — 2013-11-25
• Popular test animal in medical research — 2011-12-23
• What "Rh" may stand for — 2009-06-24
• Kind of monkey — 2005-03-28
• Monkey with a silky coat — 1999-09-03
• Kind of monkey — 1997-08-25
• _____ monkey — 1994-09-20