Historical clue formulations

• Some causes for blessings — 2025-01-31
• Cold evidence — 2018-06-02
• Goes "Ah-choo!" — 2017-06-26
• Needs blessing, maybe — 2017-01-20
• Has a cold reaction? — 2013-03-22
• You may try to stop them from coming out in public — 2010-06-18
• Goes "A-a-a-choo!" — 2009-12-14
• They often come in twos — 2004-03-06
• Blessed events? — 1999-04-07
• They bring blessings — 1998-02-27
• Blessed events? — 1994-06-03
• Signs of a cold — 1994-03-24