Historical clue formulations

• Prince of Narnia — 2020-01-22
• Sea fed by the Volga — 2009-01-06
• Volga's outlet — 2004-05-06
• Sea north of Iran — 1999-05-16
• Sea fed by the Volga — 1999-02-06
• Sea north of Iran — 1998-09-15
• Volga outlet — 1998-04-04
• Asia's ____ Sea — 1995-12-04