CHICAGO — The Lake Villa District Library in Illinois has agreed to allow men to attend a historical presentation on “Unmentionables: The Rise and Fall of Ladies Underwear,” after hearing complaints that it was violating the state’s Constitution by excluding males from the public program.

A Chicago Tribune article Monday received a swift response after describing the “no men” rule set by program presenter Ellie Carlson, an expert on historical clothing. Carlson, a costume curator, says she usually bans men because it makes women “of a certain age” uncomfortable with the subject matter, which veers into talk about menstruation, sex and other bodily functions, she said.

11 a.m., the library updated its event listing, which now states: “Please note: This program is designed for ladies only. Men may attend (but that may put a damper on discussion!).”