<prompt> Translate the following text to SwahiliIt was designated the home of the treasury of the Delian League in 480 b.c. , an act which encouraged its growth as a center for banking and commerce.  <response>: Jiji hilo lilitumiwa kama makao makuu ya hazina ya Delian League mnamo 480 KK, hatua ambayo ilichochea ukuaji wake kama kituo cha benki na biashara. 