The Dominion of Canada was officially formed, uniting the provinces of New Brunswick, Nova Scotia, Ontario, and Quebec under a single confederation on 1 July 1867.
This monumental event, known as the Confederation, laid the foundation for a unified Canadian nation, with John A Macdonald serving as the first prime minister.
The formation of the Dominion marked the beginning of a new era of self-governance and cooperation among the provinces, setting the stage for Canada's future growth and development as a nation.