...Forget what you learned about the first Thanksgiving being a celebration of a bountiful harvest, or an expression of gratitude to the Indians who helped the Pilgrims through those harsh first months in an unfamiliar land. In the Tea Party view of the holiday, the first settlers were actually early socialists. They realized the error of their collectivist ways and embraced capitalism, producing a bumper year, upon which they decided that it was only right to celebrate the glory of the free market and private property.

Historians quibble with this interpretation. But the story, related by libertarians and conservatives for years, has taken on new life over the last year among Tea Party audiences, who revere early American history, and hunger for any argument against what they believe is the big-government takeover of the United States.

It has made Thanksgiving another proxy in the debate over health care and entitlement spending, and placed it alongside the New Deal and the Constitution on the platter of historical items picked apart by competing narratives....

Historians say that the settlers in Plymouth, and their supporters in England, did indeed agree to hold their property in common — William Bradford, the governor, referred to it in his writings as the “common course.” But the plan was in the interest of realizing a profit sooner, and was only intended for the short term; historians say the Pilgrims were more like shareholders in an early corporation than subjects of socialism.

“It was directed ultimately to private profit,” said Richard Pickering, a historian of early America and the deputy director of Plimoth Plantation, a museum devoted to keeping the Pilgrims’ story alive....