Historical clue formulations

• Do the splits? — 2026-02-10
• Split up — 2023-06-30
• Chasm — 2016-10-28
• What "/" means in math class — 2015-06-24
• Undergo mitosis — 2010-05-27
• What / signifies, in math — 2002-11-19
• Make fractions — 2002-10-01
• Great ___ — 2000-11-04
• Split — 1997-10-26
• Prepare to share — 1997-05-10
• Continental line — 1996-08-28