<prompt> Translate the following text to EnglishMaandishi ya mwamba kutoka kwa Mfalme Ashoka yanaonyesha kwamba Delhi ilikuwa sehemu muhimu ya njia ya biashara kati ya mpaka wa kaskazini magharibi na Bengal katika karne ya tatu KK.  <response>: A rock inscription from Emperor Ashoka indicates that Delhi was a major point on the trade route between the northwest frontier and Bengal in the third century b.c. 