The Intercolonial Railway of Canada, also referred to as the Intercolonial Railway (ICR), was a historic Canadian railway that operated from 1872 to 1918, when it became part of Canadian National Railways. As the railway was also completely owned and controlled by the Government of Canada, the Intercolonial was also one of Canada's first Crown corporations.

Canadian Confederation was the process by which three British North American provinces—the Province of Canada, Nova Scotia, and New Brunswick—were united into one federation called the Dominion of Canada, on July 1, 1867. Upon Confederation, Canada consisted of four provinces: Ontario and Quebec, which had been split out from the Province of Canada, and the provinces of Nova Scotia and New Brunswick. Over the years since Confederation, Canada has seen numerous territorial changes and expansions, resulting in the current number of ten provinces and three territories.