<prompt> Translate the following text to EnglishKatika karne ya 17, ngome hii ilikuwa ni mji wote, lakini nyumba zilijengwa hatua kwa hatua kuzunguka juu ya marshland iliyopatikana.  <response>: In the 17th century this fort was all there was to the town, but dwellings were gradually built up around it on reclaimed marshland. 