This 1946 educational film from Encyclopædia Brittanica presents a period look at immigration to the New World. “Negroes” are mentioned once, Native Americans are invisible, and Mexicans don’t show up until the very end, but it’s an interesting film pitching the “nation of immigrants” meme. Good public schools are important for the Melting Pot, they note, the quest for freedom brought many persecuted refugees here, Congress started blocking “undesirables” (Asians, Southern and Eastern Europeans) in 1924, and yet there’s the Statue of Liberty who lifts her lamp beside the golden door. History: You’re soaking in it.