Historical clue formulations

• Quarrels — 2024-11-30
• Long rows? — 2024-05-17
• Longstanding rivalries — 2023-12-17
• Longstanding disputes — 2020-11-27
• Animosities that may span generations — 2018-06-27
• Rows that run deep — 2015-10-31
• Fights that go on and on — 2012-02-21
• Prolonged hostilities — 2012-01-23