<prompt> Translate the following text to SwahiliDespite the dramatic persecution under Nero in the first century a.d. , Christianity spread from Rome through southern Italy, then continued northward.  <response>: Licha ya mateso makubwa yaliyotokea chini ya Nero katika karne ya kwanza KK, Ukristo ulienea kutoka Roma kupitia Italia kusini, kisha ukaendelea kaskazini. 