The study shows how the idea of Aryanism was important in British imperial culture, affecting British India, South-East Asia, the Pacific, and Britain. Aryanism was used in colonial politics, journalism, and ethnology. Sir William Jones's essays suggested a shared cultural history between Indians and Europeans, challenging the divisions between Europe and Asia, Britain and India. The Aryan idea raised questions about the cultural connections between Britons and Indians, and how imperial authority could be justified. The different interpretations of the Aryan theory and the debates around it reflected the moral and political significance of these questions.