Rush Limbaugh repeats the Thanksgiving story of Plymouth every year, reading it from a chapter in one of his books titled “Dead White Guys, or What Your History Books Never Told You.” (Some details change; one year, he had the Pilgrims growing organic vegetables.)

The version is also taught in a one-day course called “The Making of America,” which became popular with Tea Party groups across the country after Glenn Beck recommended the work of its author, W. Cleon Skousen, who died in 2006. Tea Party blogs have reposted “The Great Thanksgiving Hoax” from a Web site celebrating the work of the libertarian economist Ludwig von Mises, a favorite of Ron Paul devotees. The post concludes: “Thus the real reason for Thanksgiving, deleted from the official story, is: Socialism does not work; the one and only source of abundance is free markets, and we thank God we live in a country where we can have them.”

Leave aside the question of whether this country is on the march to socialism (conservatives say yes, and blame the Democrats). What does the record say?