RMS Titanic by numerous works of popular culture, including books, folk songs, films, exhibits, and memorials. "Titanic" is the second largest ocean liner wreck in the world, only beaten by her sister , the largest ever sunk, although she holds the record as the largest sunk while actually in service as a liner due to "Britannic" being used as a hospital ship at the time of her sinking. The final survivor of the sinking, Millvina Dean, aged two months at the time, died in 2009 at the age of 97. The name "Titanic" was derived the Titan of Greek mythology and meant
Sister ship an . The most famous sister ships were the White Star Line's , and . As with some other liners, the sisters worked as running mates. Other sister ships include the Royal Caribbean International's and . "Half-sister" refers to a ship of the same class but with some significant differences. One example of half-sisters are the First World War-era British s where the first two ships had four guns, but the last ship, , had two guns instead. Another example is the American s of the Second World War that came in "long-hull" and "short-hull" versions. Notable airships include the