Traditional fishing boat were used for war and trade. Some ancient vessels were propelled by either oars or sail, depending on the speed and direction of the wind (see trireme and bireme). The Chinese were using sails around 3000 BC, of a type that can still be seen on traditional fishing boats sailing off the coast of Vietnam in Ha Long Bay. A jangada is an elegant planked fishing boat used in northern Brazil. It has been claimed the jangada dates back to ancient Greek time. It uses a triangular (lateen) sail, which allows it to sail against the wind. A felucca is
Murder on the Nile objection of an official from the Ministry of Labour to the presence of a maid in the cast of characters. The play, with the name "Murder on the Nile" finally opened in the West End on 19 March 1946 at the Ambassadors Theatre, where six years later "The Mousetrap" would open. By this time, Sullivan was no longer in the cast. The play features fewer characters who were derived from multiple of the book's characters; Marie Van Schuyler and Mrs. Allerton are merged into the character of Helen Ffoliot-ffoulkes while Cornelia Robson and Miss Bowers become Christina Grant. William Smith