What document established the framework for Canadian Confederation?

The British North America Act is the document that established the framework for Canadian Confederation. Enacted in 1867, it united the original provinces of Ontario, Quebec, New Brunswick, and Nova Scotia into a single Dominion called Canada. This act laid the groundwork for Canada's federal system of government, delineating the powers and responsibilities of the federal and provincial governments.

By defining the relationship between the various provinces and the central government, the British North America Act was crucial in shaping the legal and political landscape of Canada. It also included provisions for the admission of new provinces and territories, indicating a commitment to future growth and expansion.

Other options refer to different aspects or periods of Canadian governance but do not specifically denote the foundational legal framework for Confederation. The Constitution Act, for example, could refer to a broader range of constitutional laws in Canada, while the Confederation Act and Dominion Act are less formal titles that do not hold the same historical significance as the British North America Act. Hence, this act remains pivotal in understanding the origins and structure of Canada as a nation.