The port was founded in 43 BC, and shipping flourished in the 6th century. In the18th century, it has developed into one of the largest ports in the world. In the19th century, it has become a national trade and financial center and a world shipping center, with representative organizations of ships and shipping companies from all over the world. Lloyd's, the largest insurance organization in the world. London is the capital of Britain, the national political, economic, cultural and transportation center, the largest seaport in China, the most important manufacturing city in Britain, and is famous for its general machinery and motors. There are also aircraft, precision instruments, automobiles, oil refining, chemistry, clothing, paper making, printing, food, cigarettes and other industries are very developed.