Dominion

Self-governing countries of the British Empire

A dominion was any of several largely self-governing countries of the British Empire, once known collectively as the British Commonwealth of Nations. Progressing from colonies, their degrees of colonial self-governance increased unevenly over the late 19th century through the 1930s. Vestiges of empire lasted in some dominions well into the late 20th century. https://en.wikipedia.org/wiki/Dominion

Episodes