High Quality Content by WIKIPEDIA articles The Oceanic Steam Navigation Company or White Star Line of Boston Packets, more commonly known as the White Star Line, was a prominent British shipping company, today most famous for its ill-fated vessel, the RMS Titanic, and the World War I loss of Titanic's sister ship Britannic. In 1934 the line merged with its chief rival, Cunard Line, which operated as a separate entity until 2005 and is now part of Carnival Corporation PLC. As a lasting reminder of the White Star Line, modern Cunard ships use the term White Star Service to describe the impeccable level of customer care expected of the company.