Historical clue formulations

• Is exultant — 2023-01-22
• Boasts — 2020-08-23
• Boasts — 2015-11-01
• Cawing birds — 2006-09-18
• Toots one's own horn — 1998-03-05
• A cock does it — 1997-02-02
• Plains people — 1994-06-05