Historical clue formulations

• Short-lived interest — 2026-08-08
• The terrible twos, for one — 2026-06-18
• Something a toddler might grow out of — 2026-06-05
• Gradually introduce, with "in" — 2026-01-09
• Temporary state — 2026-01-06
• Crescent moon, for instance — 2025-06-30
• This, too, shall pass — 2025-05-09
• Adolescence, for one — 2024-01-17
• Stage — 2023-08-12
• Gradually eliminate, with "out" — 2023-05-06
• Terrible twos, e.g. — 2023-02-22
• Step for clinical trials — 2022-11-16
• Terrible twos, e.g. — 2022-04-21
• What a rebellious teenager may be going through — 2022-03-18
• Part of the plan — 2021-08-14
• Stage of development — 2021-03-29
• Waxing crescent, e.g. — 2020-07-14
• Full moon, e.g. — 2020-04-21
• New moon, e.g. — 2019-12-29
• New moon or full moon — 2019-07-17
• New or full moon, e.g. — 2018-04-09
• Thumb-sucking, e.g. — 2014-01-29
• Stage — 2013-11-14
• Period — 2011-11-12
• Astronomical appearance — 2011-10-22
• Developmental period — 2011-08-16
• Stage — 2010-11-18
• Terrible twos, e.g. — 2007-12-18
• Terrible twos, e.g. — 2007-10-16
• Terrible twos, e.g. — 2005-08-25
• Developmental stage — 2005-08-22
• Full moon, e.g. — 2004-09-19
• Moon stage — 2004-07-12
• Part of growing up — 2003-01-23
• Part of a lunar cycle — 2002-05-14
• Period — 2002-03-31
• New moon or full moon, e.g. — 2002-02-04
• New moon, for one — 2001-11-12
• Terrible twos, for one — 2000-11-20
• New moon, e.g. — 2000-07-17
• Temporary attitude — 2000-04-10
• Stage — 1999-07-03
• Stage — 1996-09-24
• The terrible twos, for one — 1996-06-01
• Stage — 1996-04-02
• Aspect — 1994-07-12