Christianity was first introduced to Zanzibar by the Portuguese. Moving up the from the south after successfully rounding the Cape of Good Hope in 1488 they staged a violent and ultimately unsuccessful bid to lay claim to the harbors, trading routes and resources of almost 2000 miles of African coastline.
Ukiristo uliletwa kwa mara ya mwanzo Zanzibar na Wareno. Wareno wakielekea juu kutoka kusini baada ya kufanikiwa kuizunguka Rasi ya matumaini mema Cape of Good Hope katika mwaka 1488 walifanya jaribio la nguvu la kudai bandari, njia za biashara na raslimali kiasi cha maili 2000 za mwambao wa Afrika.