Locally called the Song Hong, it arises is the central Yunnan province, and is joined by the Song Li and Song Da (or Clear and Dark Rivers) on its way to the sea. Its common name derives from the large amount of silt it contains, which is deposited in a densely populated 2,700-square-mile delta on the Gulf of Tonkin.
Uncle Sam (initials U.S.) is a common national personification of the American government or the United States in general that, according to legend, came into use during the War of 1812 and was supposedly named for Samuel Wilson. Its actual origin is obscure. Uncle Sam represents a manifestation of patriotic emotion.
Like many mythological and symbolic figures, Uncle Sam has origins in actual fact and, in this case, an actual man. Born in Massachusetts, Samuel Wilson settled in the town of Troy, New York. Known locally as Uncle Sam, he would be the impetus for a regional saying which would eventually become a national icon.