- “Pacific Rhythm” will feature traditional dances from Hawaii, Tahiti, New Zealand, Fiji, Cook Islands and Samoa performed with authentic costumes. 4 p.m. Free. Petworth Library, 4200 Kansas Ave. NW. 202-243-1188.
- The Kid’s Chess Club will offer weekly chess instruction. 5 p.m. Free. Chevy Chase Library, 5625 Connecticut Ave. NW. 202-282-0021.
- “Pajama Movie Night” will feature “The Secret Life of Pets.” 6:30 p.m. Free. Tenley-Friendship Library, 4450 Wisconsin Ave. NW. 202-727-1488.
- The “Live! Concert Series on the Plaza” series will feature The Colliders performing rock. Noon to 1 p.m. Free. Woodrow Wilson Plaza, Ronald Reagan Building and International Trade Center, 1300 Pennsylvania Ave. NW. 202-312-1300.
- DowntownDC Live, a lunchtime performance series, will feature Akua Allrich performing in conjunction with the Capital Fringe Festival. 12:30 to 1:30 p.m. Free. Franklin Park, 13th and I streets NW. downtowndc.org/event/downtowndc-live-2017.
- An American roots concert series will feature Gaye & the Wild Rutz performing blues and roots. 5 to 7 p.m. Free. National Garden Amphitheater, U.S. Botanic Garden, 100 Maryland Ave. SW. 202-225-8333.
- Lincka, a Mexican-American artist from Oklahoma City, will perform songs in English and Spanish. 6 p.m. Free. Millennium Stage, Kennedy Center. 202-467-4600.
- The “President’s Own” U.S. Marine Band will perform. 8 p.m. Free. Sylvan Theater, Washington Monument grounds, 15th Street and Independence Avenue SW. 202-433-4011.
- “Thursday Night Bluegrass” will feature Hollertown. 8 to 11 p.m. No cover; $12 minimum. Mr. Henry’s Restaurant, 601 Pennsylvania Ave. SE. 202-546-8412.
- Gardening and cooking writer Adrienne Cook and nutritionist Danielle Cook will present “Summer Harvest,” featuring new recipes using the abundance of peppers, corn, tomatoes, beans and zucchini now available. Noon and 12:50 p.m. Free. Conservatory Garden Court, U.S. Botanic Garden, 100 Maryland Ave. SW. 202-225-8333.
Discussions and lectures
- A National Portrait Gallery educator will connect the portraits of three prominent Civil War-era figures — Frederick Douglass, John Brown and Julia Ward Howe. Noon. Free. G Street lobby, National Portrait Gallery, 8th and F streets NW. 202-633-1000.
- Culinary historian and cook Michael Twitty will discuss his book “The Cooking Gene: A Journey Through African-American Culinary History in the Old South.” A tasting will follow. 6:45 p.m. $40 to $55. S. Dillon Ripley Center, 1100 Jefferson Drive SW. 202-633-3030.
- Erik Love, assistant professor of sociology at Dickinson College, will discuss his book “Islamophobia and Racism in America.” 6:30 p.m. Free. Kramerbooks & Afterwords, 1517 Connecticut Ave. NW. 202-387-1400.
- Tom Perrotta will discuss his novel “Mrs. Fletcher.” 7 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- The Tenleytown Memoir & Essay Writing Club will meet to provide constructive feedback in a supportive group of adult writers. 7 p.m. Free. Tenley-Friendship Library, 4450 Wisconsin Ave. NW. 202-727-1488.
- The “Beat the Heat Summer Film Series” will feature the 2016 comedy “War Dogs,” about two friends who develop an arms-trading company and win a $300 million deal that leaves them dealing with unsavory characters and increased stakes. 10:30 a.m. Free. West End Interim Library, 2522 Virginia Ave. NW. 202-724-8707.
- The Washington Jewish Film Festival’s series “For Your Consideration,” a sampling of recent Oscar submissions in the Best Foreign Language Film category, will feature New Zealand’s “A Flickering Truth,” a documentary about cinematic gems of the Afghani film archives that were ravaged, burned and banned by Taliban interdiction, at 6:30 p.m.; and Italy’s “Fire at Sea,” a documentary about the tiny Sicilian island of Lampedusa, a key entry point for refugees fleeing war and persecution in Africa, at 8:30 p.m. $13.50 per screening. Edlavitch DC Jewish Community Center, 1529 16th St. NW. wjff.org. The series will continue through Aug. 13.
- The Library of Congress’ outdoor summer film series will feature the 1986 film “Top Gun.” 8 p.m. Free; reservations suggested. North Lawn, Jefferson Building, Library of Congress, 10 1st St. SE. loc.gov. The series will continue Aug. 17 with “Ghostbusters.”
- The group Friends of Mitchell Park will continue its summertime “Films in the Field” series with a screening of the animated comedy “Ratatouille.” 8:30 p.m. Free. Mitchell Park, 23rd and S streets NW. 202-546-4293. The series will continue on Sept. 8.
- The Capitol Riverfront’s outdoor movie series will feature “Fantastic Beasts & Where to Find Them.” Sundown. Free. Canal Park, 200 M St. SE. capitolriverfront.org
- Story District will team up with Good Neighbor: Capitol Hill — a group of religious communities working together to welcome and support refugees in the Washington area — to present “American Odyssey: True tales about hospitality, homecomings & plunging into uncharted waters,” featuring stories by and about D.C.’s diverse refugee population. 7 p.m. Donation of $5 or more requested. Lutheran Church of the Reformation, 212 East Capitol St. NE. storydistrict.org.
- “Flavoring America” — an evening of tastes, talks and tours in the National Museum of American History’s newest garden space, Unity Square — will look at how herbs and spices from around the world and across the country brought about new flavors and textures in food. 6:30 to 9 p.m. $40, which includes two drinks and a plate of garden-fresh food. Second-floor West Terrace, National Museum of American History, Constitution Avenue between 12th and 14th streets NW. americanhistory.si.edu/events/food-garden.
- The Georgetown Library’s monthly Trivia Night will offer a chance to team up with friends or join fellow nerds to take home a prize (for adults and savvy teens). 7 p.m. Free. Georgetown Library, 3260 R St. NW. 202-727-0232.
- The Washington Nationals will play the Miami Marlins. 7:05 p.m. $12 to $370. Nationals Park, 1500 South Capitol St. SE. 888-632-6287.
- U.S. Botanic Garden gardener Angela Weber Hetrick will present a “Travel the Tropics” tour of the Conservatory. 11 to 11:45 a.m. Free; reservations required. Meet in the Conservatory Garden Court, U.S. Botanic Garden, 100 Maryland Ave. SW. 202-225-8333.
- “Visit Dupont Underground” will offer a chance to explore the city’s newest art space — a former trolley station with 75,000 square feet of underground platforms and tunnels. 6, 7 and 8 p.m. $16. Dupont Underground, 1500 19th St. NW. dupontunderground.org. The tour will also be offered Friday at 6, 7 and 8 p.m.
- A slide show and outdoor tour will focus on the Washington National Cathedral’s whimsical stone gargoyles and grotesques (for ages 10 and older). 6:30 p.m. $18 to $22; reservations suggested. Washington National Cathedral, Massachusetts and Wisconsin avenues NW. cathedral.org.