The Constitution Act 1982 is a significant piece of legislation in Canada that patriated the country's constitution from the United Kingdom. It includes the Canadian Charter of Rights and Freedoms, which guarantees fundamental rights and freedoms to all Canadians, such as freedom of expression and the right to equality. Additionally, the Act outlines the process for amending the constitution, making it easier for Canada to make changes without needing approval from the British Parliament. This marked a crucial step in Canada's journey towards full sovereignty and self-governance.