Historical clue formulations

• Holiday seasons — 2026-04-26
• Carolers' celebrations — 2025-07-15
• Historically Germanic observances — 2022-04-22
• Holiday times — 2021-03-19
• December celebrations — 2014-11-09
• Christmas seasons — 2013-04-09
• Year-end celebrations — 2010-08-26
• Christmases — 2007-12-19
• Seasons to be merry — 2005-07-03
• Present times? — 2002-06-02
• Wassailers' times — 2000-06-16