The wreck of the "Mary Rose" was discovered in 1971 and was raised on 11 October 1982 by the Mary Rose Trust in one of the most complex and expensive maritime salvage projects in history. The surviving section of the ship and thousands of recovered artefacts are of great value as a Tudor-era time capsule. The excavation and raising of the "Mary Rose" was a milestone in the field of maritime archaeology, comparable in complexity and cost to the raising of the 17th-century Swedish warship "Vasa" in 1961. The "Mary Rose" site is designated under the Protection of Wrecks Act 1973 by statutory instrument 1974/55. The wreck is a Protected Wreck managed by Historic England.