Historical clue formulations

• *Stay in power — 2021-09-29
• Quit ... or agree to keep going — 2017-08-02
• Bow out — 2016-03-11
• Step down from a position — 2015-06-15
• Terminate a contract ... or extend it — 2015-02-25
• Bow out — 2010-07-29
• Quit one's job — 2009-09-28
• Quit — 2002-12-11
• Quit — 1996-11-03