The Dorchester Historical Society is apologizing for a postcard advertising a holiday event that features a graphic of its headquarters building in a snow globe and the slogan: "We're Dreaming of a White Dorchester."

In a series of tweets today, in response to people getting or seeing the postcard, the society says it now realizes why that could be taken the wrong way and that that was never its intent - it was trying to riff off the Bing Crosby Christmas song: