If you experience any technical difficulties with this video or would like to make an accessibility-related request, please send a message to [email protected]. In the 2015 Nora and Edward Ryerson Lecture, Geoffrey R. Stone, the Edward H. Levi Distinguished Service Professor of Law at the University of Chicago, explores historical attitudes to homosexuality, how laws discriminating against homosexuals first came to be seen as raising possible constitutional questions, and how the nation’s high court has come to the threshold of recognizing a constitutional right of same-sex couples to marry.