Historical clue formulations

• Creature of Egyptian myth — 2026-09-09
• Beast vanquished by Oedipus — 2021-02-12
• Tourist attraction near Giza — 2006-09-12
• Inscrutable one — 2005-12-22
• Landmark near the pyramids of Giza — 2005-08-15
• It's worn in 27-Down — 1999-08-27
• Riddler of old — 1994-03-24