The movement for imperial federation has traditionally been regarded as a late nineteenth century phenomenon, which grew out of a supposed reaction against earlier ‘anti-imperialism’. J. E. Tyler set out to trace its growth ‘from its first beginnings… in and around 1868’. Historians were aware of the suggestions made before the American War of Independence that the colonies should send M.P.s to Westminster, but tended to dismiss them as of antiquarian rather than historical interest. A few also noted apparently isolated discussions of some Empire federal connexion in the first half of the nineteenth century, but no attempt was made to establish the existence of a continuous sentiment before 1870. C. A. Bodelsen did no more than list a series of examples he had discovered in the supposed age of anti-imperialism. In fact between 1820 and 1870 a debate about the federal nature of the Empire can be traced. Like the movement for imperial federation after 1870, there was only the vaguest unity of aim about the mid-century projects, and before 1870, as after, the idea was never consistently to the fore, but enjoyed short bursts of popularity. It is, however, fair to think of one single movement for a federal Empire throughout the nineteenth century. There is a clear continuity in ideas, in arguments, and in the people involved. Ideas of Empire federalism were influential, not so much for themselves as for their relationship to overall imperial thinking: to ignore the undercurrent of feeling for a united Empire is to distort the attitudes of many leading men. In the mid-nineteenth century general principles of imperial parliamentary union were argued chiefly from the particular case of British North America, the closest colonies to Britain and the most constitutionally advanced. This Canadian emphasis strengthened the analogies with the United States which occurred in any case.
