support of the Centre, who had hitherto opposed the colonial policy. Finally a general agreement for the demarcation of Africa was made in 1890 (see AFRICA, § 5). A similar agreement had been made in 1886 regarding the South Seas. It was made after Bismarck had retired from office, and he, as did the colonial party, severely criticized the details; for the surrender of Zanzibar and Witu cut short the hopes which had been formed of building up a great German empire controlling the whole of East Africa. Many of the colonial party went further, and criticized not only the details, but the principle. They were much offended by Caprivi's statement that no greater injury could be done to Germany than to give her the whole of Africa, and they refused to accept his contention that "the period of flag-hoisting was over," and that the time had come for consolidating their possessions. It must, however, be recognized that a continuation of the ambitious policy of the last few years might easily have involved Germany in dangerous disputes. Heligoland. It appeared a small compensation that Great Britain surrendered to Germany the island of Heligoland, which she had taken from the Danes in the Napoleonic wars. It was annexed to Prussia; the natives born before the year 1880 were exempted from military service, and till the year 1901 no additional import duties were to be imposed. It has been strongly fortified and made a naval station. Progress of German colonial expansion. Colonial wars. The Herero rising.