After emerging from the Industrial Revolution Britain was, by 1820, the first industrialized democracy and major world power. "Victorian" Britain represented the height of material and political triumph as the industrial revolution had transformed social and economic life while the reform movements urged by revolutionary movements in Europe and abroad had produced an increasingly agitated aristocracy. In an age of rising nationalism, the development of rival European powers in Germany and Italy, and the continued development of a Royal Navy that provided strategic support to Britain's imperial ventures in the Middle East, India, and Asia, the British Empire grew to its height under the reign of Victoria. Rival power struggles within Europe, particularly between Britain and Germany would thrust the world into the First World War and provide some of the most profound social, economic, and political changes to Britain and European society since the start of modern history. The Britain that emerged victorious in 1918 would be a subdued nation turned inward for a time as the horror and devastation of war would birth new challenges for the twentieth century.