Historical clue formulations

• Tower with daily calls to prayer — 2026-08-08
• Slender tower of a mosque — 2023-09-25
• Part of a mosque from which the call to prayer is made — 2018-07-17
• Source of some Mideast calls — 2018-06-09
• The world's oldest one is in Tunisia — 2015-12-05
• Where long-distance calls are made in the Mideast? — 2012-04-12
• Tower of faith — 2004-01-31
• Cairo skyline feature — 2000-02-05
• Source of calling — 1999-12-17
• Source of many calls — 1998-12-27
• Mosque adjunct — 1996-03-19
• Mosque feature — 1995-02-08
• Mosque feature — 1995-01-24