The General Meade Society of Philadelphia celebrates the birthday of its namesake, leader of the victorious Union campaign at Gettysburg, with reenactments, speakers, a military parade and memorial services. Free. Laurel Hill Cemetery, 3822 Ridge Ave., Philadelphia. 11:30 a.m. 215-204-5452.
The Bryn Mawr Film Institute screens the season's opera productions, taped live at La Scala in Milan. The series, shot in high definition, begins with
. $25. 824 W. Lancaster Ave., Bryn Mawr. 7 p.m.
One night only
Swing by the Main Line Art Center for a One Night Stand featuring food, drink, and works by local visual artists ages 21 to 35. Free. 746 Panmure Rd., Haverford. 6 to 9 p.m.
Songs from the swampland
Opera North brings William Grant Still's
A Bayou Legend
to Haverford College's Centennial Hall. Set deep in the swampland of Mississippi, the operatic tale looks at love and betrayal among kindred spirits. $30. 450 Lancaster Ave., Haverford. 8 p.m.