Historical clue formulations

• Taiwan Strait city — 2011-12-16
• Taiwan Strait city — 2007-05-02
• Chinese port also called Xiamen — 2004-01-04
• Island in the Taiwan Strait — 1999-01-30
• Treaty of Nanking port — 1998-04-28
• Chinese island now called Xiamen — 1996-08-25
• Fukien seaport — 1996-08-18
• Formosa Strait island — 1994-12-11