RMS Britannia was the first transatlantic steam-powered ocean liner built by the British and North American Royal Mail Steam Packet Company, later known as Cunard Steamship Company. Launched February 5 1840, one notable passenger is mentioned in the video. Direct message us with who that notable passenger was and we will draw a winner for a day pass to the museum next Thursday. "Cunard 175: Engine for Change" special exhibit runs until November 8th 2015. If you have seen it, please share your th