Whats being asked? Im confused....
Germany was losing men. 140,000 fresh U.S. troops launched a counterattack. Germany declared itself a republic. A representative for Germany Marshall Foch, went to Paris railroads and signed a Armistice to stop fighting. World War I came to an end.
The correct answer should be Quinine. Africa was beginning to be colonized even before the rest but quinine was definitely revolutionary. That's because Quinine is used as a cure for malaria, and malaria is a huge issue in Africa because of many virus bearing mosquitoes.