| a former collective term for the territories under the leadership or control of the British crown, including those in the Commonwealth of Nations and their colonies, protectorates, dependencies, and trusteeships. |

| British Empire The geographic and political units formerly under British control, including dominions, colonies, dependencies, trust territories, and protectorates. At the height of its power in the late 19th and early 20th centuries, the empire comprised about one quarter of the world's land area and population and encompassed territories on every continent, including the British Isles, British North America, British West Indies, British Guiana, British West Africa, British East Africa, India, Australia, and New Zealand. |
The empire of Britain, which began in the sixteenth and seventeenth centuries with the establishment of colonies in North America and ended in the twentieth century as dozens of nations, formerly British possessions, became independent. At the empire's greatest extent, around 1900, it included Australia, Canada, India, New Zealand, vast portions of Africa, and many smaller territories throughout the world. The empire ceased to have an “emperor” in the late 1940s, when the British king renounced the title of emperor of India. The empire has been succeeded by the British Commonwealth, which was formed in 1931.