Historical clue formulations

• Bygone city in present-day Iraq, once the world's most populous — 2023-04-06
• City where Jonah preached — 2013-02-02
• Ancient Assyrian capital — 2009-04-06
• Where God sent Jonah — 2006-05-07
• Assyrian capital — 2002-02-13
• Capital of ancient Assyria — 1998-10-18
• Ancient city on the Tigris — 1996-04-18
• Assyrian capital — 1995-11-12
• Assyrian capital — 1995-05-28