There’s a growing movement to help history teachers “unlearn” what they were taught about Thanksgiving so they can teach their students about that time period with a more accurate and nuanced lens. The holiday is often romanticized as a gathering of friends, and students rarely learn about the brutal treatment of Native Americans. But not everyone agrees students should be taught the more challenging aspects of U.S. history, believing instead we should emphasize American exceptionalism so children can feel proud of their past.