Encyclopedia Britannica Films inc. produced this Immigration video, which shows a brief history of immigration in the U.S. until 1946. This video clearly shows how immigrants came from all over the world. They did not required documents for most of the time and the term Illegal Aliens is not mention. This country is built by immigrants with and without documentation in the name of the American dream and freedom for all. An other important note is that most of the immigrants today are just second or third generation. You have to know where you come from in order to know where you going. We are one world and we should all take care of our selves and our planet.