Conversation so far:
When did Guy Carleton, 1st Baron Dorchester's post war activities start?
Guy Carleton arrived in Quebec on 23 October 1786 to begin his governorship of Quebec after the American War of Independence.
What year is Guy Carleton, 1st Baron Dorchester's post war year?
1786 is when Guy Carleton began his postwar assignment to govern Quebec.
What important thing happened in the period of Guy Carleton, 1st Baron Dorchester's governorship of Quebec?
An act of Parliament split Quebec into Upper and Lower Canada.

Question: was the act approved
Self-contained rewrite: Was The Constitutional Act of 1791 approved by Parliament?