The Guardian runs aground while writing about the Titanic:

Writing of today's Titanic centenary, an article said: "One hundred years ago ... the largest moving man-made object on Earth eased into Belfast lough and set off for New York City". The piece added that thousands of ticketed spectators turned out for the ship's "launch"; 13 days later, it went on, "the Titanic lay at the bottom of the Atlantic". To clarify, the launch of the hull watched by those crowds had been in May 1911, a year before the fully fitted ship left Belfast on 2 April 1912 for Southampton, where passengers boarded and the maiden voyage to New York began via Cherbourg and Queenstown. It was 13 days after the April 1912 departure from Belfast that the ship sank. Our piece also used the name RSS Titanic; that should have been RMS, signifying royal mail ship, not steam ship (Will the new Titanic centre do for Belfast what the Guggenheim did for Bilbao?, 24 March, page 15).