Historical clue formulations

• Divide into three parts — 2021-05-02
• Divide into 120° sections, say — 2018-02-22
• Divide, in a way — 2008-08-23
• Cut into equal parts, in a way — 2004-11-13
• Make a mathematical cut — 2004-04-03
• Divide, as Gaul — 2003-02-20
• Apportion, in a way — 1996-07-20
• Cut into three — 1996-03-24
• Make scores of 60 — 1996-01-28
• Cut in thirds — 1995-05-23