<prompt> Translate the following text to SwahiliErected in a.d. 21, it stands on a traffic island across the old N7, which here traces the route of the ancient Via Agrippa.  <response>: Jengo hilo lilijengwa mwaka wa 21 W.K. Likiwa kwenye barabara ya zamani ya N7, ambayo hapa inafuata njia ya Via Agrippa ya kale. 