"Zanzibar Protectorate" . "Zanzibari slave traders" . . . . . "British protectorate of Zanzibar" . . . . . . . . . . . . . . . . . . . "Sultanate" . . . . . . . "Sultan" . "sultan of Zanzibar" . . . . . "(Sultanate of)" . . . . . . . . . "Zanzibari" . . . . . . . . . . . "British protectorate" . . . . . . . . . . . . . . . . "Zanzibar Sultanate" . . "Constitutional monarchy" . . . . . . . "Sultanate of Oman" . . . "Zanzibar, Sultanate of" . "Zanzibar" . . "Sultan of Zanzibar" . . . . . "Zahege" . . "sultanate" . "Sultanate of Zanzibar" . . . . . . . . . . "Sultanate of Zanzibar" . "The Sultanate of Zanzibar" . . .