The unthinkable happened to the "unsinkable" passenger liner R.M.S. Titanic on April 15, 1912. The second of three Olympic class ships built for the White Star Line, she was the largest man-made moving object at that time, with a length of almost 900 feet long. She departed on her maiden voyage from Southampton, England to New York on April 10, 1912. Just 4 days into her journey she struck an iceberg and sank, claiming the lives of more than 1,500 people. Thought to be lost to history, she was discovered by underwater archaeologist Dr. Robert Ballard in 1985. The Titanic tragedy remains one of the worst maritime disasters in human history.