Iconic Photos documents at least two instances in which the U.S. postal service rewrote history, so to speak, taking smoking out of the stamp:

Pollack and Johnson are important figures in American history, who smoked before it carried the stigma it carries today, and whose smoking represents the time and culture that inspired their genius.  How do you balance the desire to be historically accurate and true to the individual, with the desire to avoid endorsing a habit newly framed as a social problem?

Via BoingBoing.

Lisa Wade, PhD is a professor at Occidental College. She is the author of American Hookup, a book about college sexual culture, and a textbook about gender. You can follow her on Twitter, Facebook, and Instagram.