北京杨扬同志来信问,美国人的外号为什么叫做“山姆大叔”,英国人为什么被称为“约翰牛”?现简复如下: “山姆大叔”英文为Uncle Sam,缩写是US,正好与美国国名的英文缩写US相同。至于说它怎样成为美国的绰号和象征,这事传说不一。最流行的说法是,一八一二年,美英战争期间, Comrade Yang Yang from Beijing asked whether the nickname of the United States is called “Uncle Sam,” and why the British are called “John Cattle.” The following is a brief summary: “Uncle Sam” is Uncle Sam in English, and US is the abbreviation, The same as the English abbreviation US. There is a lot of talk about how it has become the nickname and symbol of the United States. The most popular argument is that during the war between the United States and Britain in 1812,