Historical clue formulations

• Responded identically to — 2025-01-03
• Was bouncing off the walls? — 2024-11-18
• Bounced back, as a sound — 2021-05-03
• Went "Hello ... ello ... llo ... lo ..." — 2020-03-02
• Seconded, so to speak — 2019-10-20
• Rebounded — 2017-04-28
• Came back — 2011-10-12
• Repeated — 2011-10-11
• Reverberated — 2011-01-10
• Made a comeback? — 2008-04-20
• Seconded — 2007-10-28
• Parroted — 2006-08-26
• Seconded — 2005-12-11
• Had lingering effects — 2005-03-20
• Me-tooed, in a way — 2003-07-12
• Seconded — 2000-12-24
• Repeated — 1999-05-06
• Bounced back — 1996-06-30
• Bounced back — 1996-04-29
• Iterated — 1995-08-28
• Repeated — 1994-10-31
• Returned — 1994-10-14