Photo by angela n.

TRIVIA: Move to disco music while you show off your knowledge of “70s history, pop culture, politics, and the arts” at the National Portrait Gallery’s Pop Quiz: Disco Inferno—70s Night in the Kogod Courtyard (Eighth and F Streets NW). 6:30 p.m. Free.

SHOPPING: Nearly two dozen museums and cultural institutions will be selling “holiday gifts, handmade crafts, and curated items” at the Strathmore Mansion’s (10701 Rockville Pike North Bethesda, Md.) Museum Shop Around today through this Sunday. 10 a.m.-8 p.m. $8 online, $9 (cash only) at the door.

LECTURE: Attend a lecture on “Black Politics in Civil War Washington: What Spielberg’s Lincoln Didn’t Tell You” at George Washington University’s Jack Morton Auditorium (805 21st Street NW) tonight to help kick off the 40th Annual Conference on DC Historical Studies. Come early (6 p.m.) for a reception catered by Ben’s Chili Bowl, then stay for the lecture at 7 p.m. Free.

JAZZ: Guitarist and South African native Jonathan Butler is among the most prominent voices in the world of smooth jazz. He will be at Blues Alley on tonight to begin a four night run of 8 and 10 p.m. sets. Tickets $50 plus minimum and surcharge. – Sriram Gopal