Olympic-class ocean liner
When "Titanic" sank in 1912 and "Britannic" sank in 1916, their sinkings did not receive the same attention, due to the death toll (1,517 on "Titanic" and 30 on "Britannic"). Because the exact position of the sinking of the "Britannic" is known and the location is shallow, the wreck was discovered relatively easily in 1975. "Titanic", however, drew everyone's attention in 1912. After several attempts, the wreck was finally located by Jean-Louis Michel of Ifremer and Robert Ballard following a top secret mission for the US Navy to investigate the wreckage of two nuclear submarines, USS Thresher (SSN-593) and the USS Scorpion (SSN-589), that sank in the North Atlantic in the 1960s. The discovery of the wreck occurred on 1 September 1985, at 25 kilometres from the position given of the sinking. The wreck lies about 4,000 metres deep, broken in two. The bow is relatively well preserved, but the stern partially imploded, and to a large extent disintegrated during the descent and impact on the seabed.
International Ice Patrol
On her maiden voyage from Southampton, England bound for New York, "Titanic" collided with an iceberg just south of the tail of the Grand Banks and sank in less than three hours. The loss of life was enormous with more than 1,500 of the 2,224 passengers and crew perishing. "Titanic", the brand new ship of the White Star Line, was the largest passenger liner of her time displacing 45,000 tons and capable of sustained speed in excess of . The loss of "Titanic" gripped the world with a sobering awareness of an iceberg's potential for tragedy. The sheer dimensions of the "Titanic" disaster created sufficient public reaction on both sides of the Atlantic to prod reluctant governments into action, producing the first Safety of Life at Sea (SOLAS) convention in 1914.