11 October 1982 — and a Greenwich sentence that says 1981
The raising
The Mary Rose was raised on 11 October 1982, the Trust says, and was returning home to Portsmouth Dockyard, where she had been built almost 500 years earlier. Mary Rose Trust The Mary Rose was raised on 11 October 1982, the Trust’s timeline says. Mary Rose Trust On 11 October 1982 the ship was raised from the seafloor. Although the starboard was relatively well preserved by mud and clay, the exposed port side was gone. After major conservation work, the vessel went on display in 2013 at the Mary Rose Museum in Portsmouth. Britannica
Royal Museums Greenwich says the Mary Rose was a warship built in Portsmouth for King Henry VIII. It sank in 1545 and was recovered in 1981, with many artefacts still on board. Royal Museums Greenwich
Recovered in 1981, or raised on 11 October 1982?
The Mary Rose Trust, repeatedly, and Britannica, say the ship was raised on 11 October 1982. Royal Museums Greenwich says in one sentence that it was recovered in 1981, and in others that it was raised from the seabed in 1982 and lifted in 1982. We keep that 1981 wording in view rather than silently correcting it.
The search was a result of the dedication of Alexander McKee. In 1965, with the Southsea branch of the British Sub-Aqua Club, he initiated Project Solent Ships. With him was land archaeologist Margaret Rule. Mary Rose Trust Diver Percy Ackland found three or four frames of a ship on 1 May 1971. By the end of the day a row of frames had been exposed over about 30 metres. The Mary Rose had been found. Mary Rose Trust The Mary Rose lay on the seabed for over 400 years. Then in 1971, archaeologists diving in the area where it sank discovered the wreck. In 1982 it was lifted up from the bottom of the sea. Royal Museums Greenwich In 1965 the ship was believed to have been found, lying on its starboard side and buried under grey clay. It was not until 1971 that the vessel was positively identified. Thereafter some 19,000 artifacts were recovered. Britannica
The ship was on her starboard side at an angle of 60 degrees from the vertical. Mary Rose Trust The Mary Rose Trust was formed in 1979 with the former Prince of Wales as president. They were helped by over 500 volunteer divers, and many more volunteers on shore. Mary Rose Trust
A purpose-built lifting frame was attached by wires to steel bolts passing through the hull. The hull was transferred into a steel cradle on the seabed, then raised to the surface by the crane barge Tog Mor, placed on a barge and towed ashore. Mary Rose Trust Although the largest surviving part of the ship was raised in 1982, the Trust says, there are still significant remains of the Mary Rose still buried in the seabed. Mary Rose Trust The Solent mud helped to preserve many of the items on board — as many as 19,000 artefacts have since been recovered. They are now on display in a special museum at Portsmouth, run by the Mary Rose Trust. Royal Museums Greenwich