Final answer:
The Canadian Charter of Rights and Freedoms became part of the Constitution on April 17, 1982, marking a foundational moment in Canadian constitutional law by entrenching a series of key rights and freedoms.
Step-by-step explanation:
The Canadian Charter of Rights and Freedoms became part of the Constitution on April 17, 1982. This event marked a significant development in Canadian constitutional law, entrenching a series of rights and freedoms within the nation's supreme law. The Charter guarantees fundamental freedoms such as freedom of expression, religion, and the right to equality under the law, profoundly affecting the relationship between Canadians, their government, and the judiciary.