After the American Revolution, with the creation of the Diocese of Nova Scotia in 1787, St. Paul's was given the Bishop's seat, making it the first Anglican cathedral outside of Great Britain. It served as the cathedral from 1787–1864. The diocese included Nova Scotia, New Brunswick, Newfoundland, St. Johns (now Prince Edward Island), and across Quebec and Ontario to Windsor, and Bermuda. For many decades it was one of the few places of worship in Halifax, and other denominations would thus hold services in the building.