<prompt> Translate the following text to EnglishLakini ukuu wake ulihusiana na bandari yake nzuri ya asili, na wakati hii ilipoingia katika karne ya tatu KK, mji ulianza kupungua.  <response>: But its greatness was linked to its fine natural harbour, and when this silted up in the third century a.d. the city went into decline. 