Historical clue formulations

• Part of a pizza — 2025-03-06
• Piece of the pie — 2024-05-25
• It may be found above the mantle — 2022-01-18
• Feature of the inner planets — 2021-11-06
• Part of a pie or the earth — 2021-08-08
• Piece of the pie? — 2021-01-30
• Mantle's cover — 2018-11-17
• Leftover pizza part — 2018-03-20
• See 74-Down — 2017-11-26
• Part of the earth — 2017-04-23
• Piece of pizza? — 2015-12-06
• Piece of the pie — 2015-07-19
• Pizza part often eaten last — 2014-08-18
• Pizza feature — 2003-03-19
• Tart part — 2002-08-22
• Outer pie part — 2000-10-30
• Pizza feature — 1998-10-16
• Pizza part — 1995-12-25
• Pizza part — 1995-11-19