Definition of calcium channel blocker. : any of a class of drugs (such as verapamil) that prevent or slow the influx of calcium ions into smooth muscle cells and are used especially to treat some forms of angina pectoris and some cardiac arrhythmias.
Most of Germany's colonies were occupied by its enemies in the first weeks of World War I, German South-West Africa surrendered in 1915, Kamerun in 1916 and German East Africa only in 1918 by end of the war.Germany's colonial empire was officially confiscated with the Treaty of Versailles after her defeat in the war.erman South West Africa was taken under mandate by the Union of South Africa. In the Pacific, Japan gained Germany's islands north of the equator (the Marshall Islands, the Carolines, the Marianas, the Palau Islands) and Kiautschou in China.
European Powers started creating colonial empires in the 19th century. Scramble for Africa. Economic Impact. Social and Cultural Impact. Political Impact. Negative Effects of European Imperialism in Africa. 1885, European nations sign the General Act of Berlin. Berlin Conference - 1884-1885: -Africa was a disputed territory that was in need for exploration, trade, and settlement.