The "Imperial Era" refers to a period in history characterized by the expansion of empires and colonial rule. This era often involved the domination of one nation over others, leading to significant political, economic, and cultural changes. Notable examples include the British Empire, Roman Empire, and Ottoman Empire, which expanded their territories through conquest and colonization. During the Imperial Era, many nations sought to increase their power and influence globally. This often resulted in the exploitation of resources and people in colonized regions. The era also saw the spread of ideas, technologies, and religions, shaping the modern world in various ways.