I want to know the answer to the following question:
Canada's Supreme Court didn't actually become that country's highest court until when?
All the background I'm provided with is that "The title "Supreme" can be confusing because, for example, The Supreme Court of British Columbia does not have the final say and controversial cases heard there often get appealed in higher courts - it is in fact one of the lower courts in such a process.". Is that enough to answer the question?
Answer: no