Progressivism in the United States is a broadly based reform movement that reached its height early in the 20th century and is generally considered to be middle class and reformist in nature. It arose as a response to the vast changes brought by modernization, such as the growth of large corporations and railroads, and fears of corruption in American politics. In the 21st century, progressives continue to embrace concepts such as environmentalism and social justice. Social progressivism, the view that governmental practices ought to be adjusted as society evolves, forms the ideological basis for many American progressives.
One historian defined progressivism as the "political movement that addresses ideas, impulses, and issues stemming from modernization of American society. Emerging at the end of the nineteenth century, it established much of the tone of American politics throughout the first half of the century."
The Progressive Party of Canada was a political party in Canada in the 1920s and 1930s. It was linked with the provincial United Farmers parties in several provinces and, in Manitoba, ran candidates and formed governments as the Progressive Party of Manitoba. The party was part of a farmers' political movement that included provincial Progressive and United Farmers' parties.
The United Farmers movement in Canada rose to prominence after World War I. With the failure of the wartime Union government to alter a tariff structure that hurt farmers, various farmers movements across Canada became more radical and entered the political arena. The United Farmers movement was tied to the federal Progressive Party of Canada and formed provincial governments in Ontario, Alberta and Manitoba. It rejected the National Policy of the Conservatives and also felt that the Liberals were not strong enough proponents of free trade and were too strongly tied to business interests. Generally, farmers groups formed alliances with Labour and socialist groups though, in power, they became closer to the Liberals causing ruptures in several provinces between United Farmer governments and their organizations.