Below you can find the This city dates back to the founding of the roman settlement of londinium in 43 a.d. Jeopardy Words Answer. The answer to This city dates back to the founding of the roman settlement of londinium in 43 a.d. has 6 letters. This clue belongs to the World capitals category and is part of Jeopardy Word Level 2409. If you scroll near the bottom you will find other clues and answers part of level 2409