Conversation so far:
who has the power to make laws in america
The Constitution specifically grants Congress its most important power — the authority to make laws.
Why was the power to make laws in America given to congress
Founders intended Congress to have more important powers than the President and the Supreme Court.
What about in a state in America, who has the power to make laws
States retain plenary power to make laws covering anything not preempted by the federal Constitution, federal statutes, or international treaties ratified by the federal Senate.
What about in Canada who has the power to make laws
Canada is a federal state, responsibility for lawmaking is shared among one federal, ten provincial and three territorial governments.

Question: Since when
Self-contained rewrite: Since when does Canada's government have the power to make laws