Historical clue formulations

• Mideast call to prayer — 2008-05-18
• Muezzin's call to prayer — 1997-12-21
• Call from the minaret — 1997-11-26
• Muezzin's call to prayer — 1997-10-23
• Muezzin's call at a mosque — 1995-01-29
• Call from the minaret — 1994-11-29
• Call from a minaret — 1994-11-09
• Muslim call to prayer — 1994-08-20