Historical clue formulations

• Capital of Yemen — 2026-09-29
• Capital near the Red Sea — 2026-01-23
• World capital next to the Sarawat Mountains — 2025-07-25
• Capital city that's 7,200+ feet above sea level — 2024-06-08
• Capital southeast of Mecca — 2024-03-22
• Mideast capital — 2024-02-09
• Yemen's capital — 2023-12-11
• Capital of Yemen — 2022-05-22
• Capital on the Arabian Peninsula — 2020-06-26
• Yemen's capital — 2018-01-09
• Largest city of Yemen — 2017-04-02
• Capital of Yemen — 2017-03-12
• Unesco World Heritage Site on the Arabian Peninsula — 2017-03-04
• Yemeni capital — 2016-09-14
• Unesco World Heritage Site on the Arabian Peninsula — 2015-04-25
• Capital of Yemen — 2015-03-24
• Yemen's capital — 2013-05-14
• World capital at 7,200+ feet elevation — 2012-04-19
• Yemen's capital — 2011-05-03
• Capital of Yemen — 2011-04-19
• Yemen's capital — 2010-11-22
• World capital almost 1 1/2 miles above sea level — 2010-10-24
• Capital 7,200 feet above sea level — 2010-07-03
• Yemen's capital — 2008-01-30
• Unesco World Heritage Site on the Arabian Peninsula — 2007-10-12
• Arabian capital — 2006-06-03
• Yemen's capital — 2005-12-22
• Capital east of Asmara — 2005-11-26
• Yemen's capital — 2003-11-10
• Yemen's capital — 2002-01-17