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Which four provinces formed the Dominion of Canada in 1867?

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In 1867, the Dominion of Canada was formed through the British North America Act, which united three British colonies into a single federation.12

The four provinces that formed the original Dominion were:

  • Ontario (formerly Canada West)12
  • Quebec (formerly Canada East)12
  • Nova Scotia12
  • New Brunswick12

The act divided the previously united Province of Canada into the separate provinces of Ontario and Quebec, while Nova Scotia and New Brunswick joined as distinct entities to complete the initial four-province union.12