Delegates at the Quebec conference of 1864 drafted a document that provided the constitutional framework for confederation: the 72 resolutions. The Legislative Assembly of Canada approved the resolutions by a double majority (a majority of both Upper and Lower Canadian representatives), but Prince Edward Island rejected the terms and Newfoundland opted to maintain its legislative independence. At the London conference in 1866, the delegates from Canada, New Brunswick, and Nova Scotia approved, with a few changes, the Quebec resolutions; these became the London resolutions, and finally the British North America Act, which was ratified by Queen Victoria on 29 March 1867.