The Legislative Assembly of the Province of Canada was established in 1841, serving as the governing body for the united provinces of Upper Canada and Lower Canada. It was part of a larger effort to create a more effective government structure, allowing for local representation and decision-making. The assembly consisted of elected representatives who debated and passed laws affecting the province. This legislative body operated until 1867, when the British North America Act created the Dominion of Canada, leading to the establishment of separate provincial legislatures. The assembly played a crucial role in shaping the political landscape of Canada during its existence.