Historical clue formulations

• Play featuring a trio of witches — 2025-07-13
• Speaker of the line "Tomorrow, and tomorrow, and tomorrow / Creeps in this petty pace from day to day" — 2024-10-19
• Subject of a centuries-old theatrical superstition — 2024-01-03
• Play title that superstitious actors avoid saying aloud in theaters — 2022-10-09
• Source of the line "Something wicked this way comes" — 2013-10-17
• Work of 1606 — 2000-08-16
• Thane of Glamis — 1995-06-17
• King Duncan's killer — 1995-05-07