Timeline of United States discoveries four days into the ship's maiden voyage, "Titanic" struck an iceberg and sank two hours and forty minutes later, early on April 15, 1912. The sinking resulted in the deaths of 1,517 of the 2,223 people on board, making it one of the deadliest peacetime maritime disasters in history. After nearly 74 years of being lost at sea on the bottom of the ocean floor, a joint Franco-American expedition led by American oceanographer Dr. Robert D. Ballard, discovered the wreckage of the RMS "Titanic" two miles (3 km) beneath the waves of the North Atlantic on September 1, 1985. Ballard
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