The era of imperialism saw Western powers extend their global reach through colonization and economic exploitation. This period was marked by the scramble for Africa, technological advancements, and ideological justifications like Social Darwinism and the "White Man's Burden." World War I emerged from this imperial landscape, fueled by nationalism, alliances, and militarism. The conflict introduced new technologies like tanks and chemical weapons, reshaped global politics, and set the stage for future conflicts, including World War II.