- The group Friends of the Mount Pleasant Library will hold its weekly used-book sale. 11 a.m. to 2 p.m. Free admission. Mount Pleasant Library, 3160 16th St. NW. 202-671-3121.
- “Celebrate Twelfth Night!” will offer children an opportunity to get festive with Twelfth Night traditions. 10 a.m. for ages 5 through 7; 11 a.m. for ages 8 through 14. Free; registration required. Folger Shakespeare Library, 201 East Capitol St. SE. 202-675-0395.
- A children’s program on “Galette des Rois” will commemorate the traditional French celebration of Epiphany with a piece of king cake. 10 to 11 a.m. $2 to $3. Alliance Française de Washington, 2142 Wyoming Ave. NW. francedc.org.
- The Kreeger Museum’s “First Studio: Story + Workshop” will feature a gallery tour of paintings, sculpture and architecture, as well as a story and a hands-on art-making experience (for ages 3 to 5). 10 to 11 a.m. $10 per child; registration required. Kreeger Museum, 2401 Foxhall Road NW. 202-337-3050. The program will also be offered Jan. 20.
- Children will hear a story about Martha Graham and then create a special piece of art. 1 to 4 p.m. Free. National Portrait Gallery, 8th and F streets NW. 202-633-1000. The program will repeat Sunday from 1 to 4 p.m.
Classes and workshops
- The Kennedy Center will host an all-levels vinyasa yoga class led by Kelly Carnes. 10 a.m. Free; reservations suggested. Grand Foyer, Kennedy Center. kennedy-center.org.
- GTGTech, a D.C.-based nonprofit, will offer one-on-one tutoring by tech-savvy teens for seniors in need of help on computer, iPhone or iPad usage. 1 to 4 p.m. Free; reservations requested. Tenley-Friendship Library, 4450 Wisconsin Ave. NW. firstname.lastname@example.org.
- Areyto, a musical ensemble led by New York City-based artist Lisette Santiago, will celebrate Three Kings Day with traditional bomba, plena and aguinaldos. 6 p.m. Free. Millennium Stage, Kennedy Center. 202-467-4600.
- The National Symphony Orchestra with conductor Edwin Outwater will perform a repertoire tied to works of art housed in the National Portrait Gallery. 7 p.m. Free. Kogod Courtyard, National Portrait Gallery, 8th and F streets NW. 202-633-1000.
- Armonia Nova, an ensemble of period instruments and voices specializing in music of the 12th through 17th centuries, will present “O Luminous Night: A Celebration of Epiphany & the Winter Solstice,” featuring Constance Whiteside, Tina Chancey and Jacqueline Horner-Kwiatek. 7:30 to 9 p.m. Free. St. Mark’s Episcopal Church, 301 A St. SE. armonianova.org.
- The Washington Conservatory Concert Series will feature pianist Alexander Paley performing an all-Russian program. 8 p.m. Free; donations welcome. Westmoreland Congregational United Church of Christ, 1 Westmoreland Circle. 301-320-2770.
Discussions and lectures
- The Rock Creek Civil War Roundtable will feature historian C.R. Gibbs on “Capital Defenders: Contrabands, the Civil War, & the Rebel Attack on Washington, DC.” 9:30 a.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6000.
- Sumru Belger Krody, senior curator of The Textile Museum collections, will discuss the collection of 96 artistically and historically significant Anatolian kilims donated to the museum in 2013 by Murad M. Megalli. 10:30 a.m. Free. George Washington University Museum and Textile Museum, 701 21st St. NW. 202-994-5200.
- Bijan Omrani will discuss his book “Caesar’s Footprints: A Cultural Excursion to Ancient France: Journeys Through Roman Gaul.” 1 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- Elizabeth Jaikaran will discuss her book “Trauma: A Collection of Short Stories,” about the abuse suffered by Guyanese women, girls and members of the LGBT community both in their native country and after having emigrated to the United States. 2 to 4 p.m. Free; reservations requested. The Potter’s House, 1658 Columbia Road NW. pottershousedc.org.
- Alan Pell Crawford will discuss his book “How Not to Get Rich: The Financial Misadventures of Mark Twain.” 3:30 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- R. Marie Griffith will discuss her book “Moral Combat: How Sex Divided American Christians and Fractured American Politics.” 6 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- “An Affinity for Witnessing” will feature short works exploring the idea of bearing testament, the notion that visible evidence is as necessary for the experimental impulse in cinema as it is for the documentary urge. Filmmaker Kelly Gallagher will attend the screening. 2 p.m. Free. East Building Auditorium, National Gallery of Art, 4th Street and Constitution Avenue NW. 202-737-4215.
- “An Affinity for the Interval” will feature short works highlighting the cinematic use of “interval” to refer to a film’s duration as well as the space a work creates. Scholar Claudrena Harold will attend the screening. 4 p.m. Free. East Building Auditorium, National Gallery of Art, 4th Street and Constitution Avenue NW. 202-737-4215.
- Nate DiMeo, host and creator of “The Memory Palace” podcast, will present short, surprising stories from the dustier corners of American history, set to music. 8 p.m. $25 to $28. Sixth & I Historic Synagogue, 600 I St. NW. sixthandi.org.
- Portland-based Unit Souzou will present “88: Hachi Hachi,” featuring a mix of taiko, dance and theater. 8 p.m. $15 to $30. Dance Place, 3225 8th St. NE. 202-269-1600. The performance will repeat Sunday at 4 p.m.
- The Washington Harbour ice skating rink will hold a weekly “Cartoon Skate” event, from 10 a.m. to noon; and a “Rock n Skate” event, from 8 to 10 p.m. $9 to $10. Washington Harbour, 3000 K St. NW. 202-706-7666.
- A daylong program on “1968: Shaping the District” will highlight the historical and cultural significance of 1968 by exploring Washington, D.C., as it was at the time: a predominantly African-American city being shaped by grass-roots organizing, groundbreaking initiatives, creative expression, racism, protests and activism. Activities will include talks, performances and films, as well as a book signing by George Derek Musgrove, author of “Chocolate City: A History of Race and Democracy in the Nation’s Capital.” 11 a.m. to 4 p.m. Free. National Building Museum, 401 F St. NW. 202-272-2448.
- The Tenley-Friendship Library’s “Game On!” event will offer all ages a chance to play a bevy of board games and video games. 1 p.m. Free. Tenley-Friendship Library, 4450 Wisconsin Ave. NW. 202-727-1488.
- The National Symphony Orchestra will lead a program exploring the connections between music and portraiture through performances and educational activities. 1 to 7 p.m., with chamber concerts at 4 and 5:30 p.m. Free. Kogod Courtyard, National Portrait Gallery, 8th and F streets NW. 202-633-1000.
- The Washington Wizards will play the Milwaukee Bucks. 8 p.m. $24 and up. Capital One Arena (formerly Verizon Center), 601 F St. NW. 800-745-3000.