Below you can find the In the mid-18th century all foreign trade was confined to this southern port city Jeopardy Words Answer. The answer to In the mid-18th century all foreign trade was confined to this southern port city has 6 letters. This clue belongs to the Chinese history category and is part of Jeopardy Word Level 2003. If you scroll near the bottom you will find other clues and answers part of level 2003