The Titanic sunk on April 15, 1912, and has remained a famous incident in world history ever since.
AP Photo/Dave Thompson/PA
Curator Dawn Littler holds the only known surviving first class ticket from the Titanic, at the Merseyside Maritime Museum in Liverpool England Thursday March 29, 2012. The ticket, which belonged to Reverend Stuart Holden, is on display at the exhibition "Titanic and Liverpool: The Untold Story," which marks the 100th anniversary of the sinking of the ship. Reverend Holden cancelled his trip aboard the Titanic after his wife fell ill the day before they were due to set sail. A portrait of the Reverend Holden is seen at rear.