Historical clue formulations

• Orange and peach, for example — 2023-03-19
• What the letters of "Roy G. Biv" stand for — 2021-05-18
• See 33-Across — 2020-02-11
• See 37-Across — 2018-07-17
• Certain laundry load — 2015-11-20
• Salmon and coral — 2012-09-13
• Flag — 2010-07-18
• Flag — 2007-01-18