11 29th Sadie T.M. Alexander Conference: Social Media and the Law; three panels, a workshop and a career fair; 9:30 a.m.-5 p.m.; Penn Law; info.: http://tinyurl.com/jpzywss (Penn Law’s Black Law Students Association).

15 Morton Subotnick & Lillevan; light and sound duet; 8 p.m.; Annenberg Center; tickets: www.annenbergcenter.org/ (Annenberg).

Talk

15 The U.S. and China: Where We Go from Here; Jon M. Huntsman, Jr., chairman of the Atlantic Council; 4:30 p.m.; Ambani Auditorium G06, Jon M. Huntsman Hall (Perry World House)

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AT PENN Deadlines:

The February AT PENN calendar is here. The deadline for the March AT PENN calendar is February 14.

Info. is on the sponsoring department’s website; sponsors are in parentheses. For locations, call (215) 898-5000 or see www.facilities.upenn.edu