Historical clue formulations

• North African fortress, in one spelling — 2026-06-07
• Moroccan quarter — 2022-02-26
• Algiers quarter: Var. — 2001-07-22
• Old section of Algiers — 2000-12-05
• Algiers area — 1999-09-18
• Algiers's old quarter — 1997-08-22
• North African fortress — 1994-07-20