Wreck of the RMS Titanic the debris field was surveyed in Robert Ballard's 1986 expedition, pairs of shoes were observed lying next to each other on the sea bed. The flesh, bones, and clothes had long since been consumed but the tannin in the shoes' leather had apparently resisted the bacteria, leaving the shoes as the only markers of where a body had once lain. Ballard has suggested that skeletons may remain deep within "Titanic"s hull, such as in the engine rooms or third-class cabins. This has been disputed by scientists, who have estimated that the bodies would have completely disappeared by the early 1940s
British Wreck Commissioner's inquiry into the sinking of the RMS Titanic had taken place in the month after the sinking, led to changes in safety practices following the disaster. The sinking of the , a trans-Atlantic passenger liner operated by White Star Line, occurred in the early hours of 15 April 1912 while the ship was on its maiden voyage from Southampton, UK, to New York, United States. The sinking was caused by a collision with an iceberg in the North Atlantic some 700 nautical miles east of Halifax, Nova Scotia. Over 1500 passengers and crew died, with some 710 survivors in "Titanic"s lifeboats rescued by a few hours later. There