Many jurisdictions, such as Croatia, Denmark, Estonia, Hungary, Iceland, Iran, Mauritania, New Zealand, Peru, Sweden, Turkey, Venezuela and many Indian states as well as Brazilian states and Canadian provinces, once possessed upper houses but abolished them to adopt unicameral systems. Newfoundland had a Legislative Council prior to joining Canada, as did Ontario when it was Upper Canada and Quebec from 1791 (as Lower Canada) to 1968. Nebraska is the only state in the United States with a unicameral legislature, having abolished its lower house in 1934.