Hindenburg, Titanic talk, Cheryl Ganz, National Postal Museum’s chief curator of philately, discusses documents relating to the museum’s exhibit “Fire and Ice: Hindenburg and Titanic,” featuring photographs and other artifacts. Noon-1:30 p.m., S. Dillon Ripley Center, 1100 Jefferson Dr. SW. $25. 202-633-3030.
Hello Federal Triangle, Farewell Murder Bay, a National Park Service ranger discusses the massive 1930s Federal Triangle area construction project. 3:30 p.m., Old Post Office Pavilion, Tower Observation Deck, 1100 Pennsylvania Ave. NW. Free. Call Titus Early, 202-606-8691.
Beauty and the East, an opening art reception for “The Sultan’s Garden: The Blossoming of Ottoman Art,” with co-curator Sumru Belger Krody. Bohemian dress is encouraged. 6-9 p.m. Thursday, Textile Museum, 2320 S St. NW. Free. 202-667-0441, Ext. 64.
Words, Beats and Life Inc., a showcase of performances by poets, break dancers, disc jockeys and others. 6 p.m., Kennedy Center, Millennium Stage, 2700 F St. NW. Free. 202-467-4600.
Cathedral gargoyle tour, a docent shows slides of the building’s whimsical stone gargoyles and grotesques, followed by an outdoor tour; binoculars and cameras welcome. 6:30 p.m. Thursday, 2 p.m. Sunday, Washington National Cathedral, Perry Auditorium, Wisconsin and Massachusetts avenues NW. $10; age 12 and younger, $5; families with reservations, $30. 202-537-6200 or www.nationalcathedral.org.
Tudor nights: guns and gowns, a tour of the mansion and a viewing of its fashion and firearms; hors d’oeuvres and specialty cocktails served. 6-8 p.m., Tudor Place, 1644 31st St. NW. $15. 202-965-0400 or http://gunsandgowns.eventbrite.com/ .
Architecture and seniors, architect Matthias Hollwich discusses how architecture can adapt to the changing needs of people. 6:30 p.m., Goethe-Institut, 812 Seventh St. NW. Free. 202-289-1200, Ext. 167, or email@example.com .
The Chaotic 14th Century, discussed by Mary Frances Giandrea, an assistant professor of history at American University. 6:45-8:45 p.m., S. Dillon Ripley Center, 1100 Jefferson Dr. SW. $35. 202-633-3030.
Apps for artists, Nancy Freeman teaches how tablet computers and smartphone software applications can be used to create electronic art. 7 p.m., Hill Center at the Old Naval Hospital, 921 Pennsylvania Ave. SE. Free, registration required. 202-549-4172 or www.hillcenterdc.org/home/programs.
Hollywood versus World War II, a National Park Service Ranger discusses the World War II interest that sprang up following the releases of “Saving Private Ryan” and “Band of Brothers.” 7 p.m., National World War II Memorial, 17th Street and Constitution Avenue NW. Free. Call Paul O’Brian, 202-438-7066.
The Oceans of Europa: Jupiter’s Cradle of Life?, program scientist Curt Niebur discusses Europa and its importance in our search for oases beyond Earth. 7-8:30 p.m., S. Dillon Ripley Center, 1100 Jefferson Dr. SW. $25. 202-633-3030.
JFK film and discussion,screening of Charles Guggenheim’s 1979 documentary “John F. Kennedy, 1917-1963”; historian Timothy Naftali moderates a panel discussion featuring Harris Wofford and Jay Lash Cassidy. 7 p.m., National Archives, McGowan Theater, Constitution Avenue and Ninth Street NW. Free. 202-357-5000.
“The Catholic Vote” panel discussion, scholars discuss aspects of religion and politics in the upcoming presidential election. 7-10 p.m., Catholic University, Great Hall, Father O’Connell Hall, 620 Michigan Ave. NE. Free. 202-319-5600.
“Invisible” film, about the emotional toll on the victims of a serial rapist 20 years after his offenses, in Hebrew with English subtitles. 8 p.m., Avalon Theatre, 5612 Connecticut Ave. NW. $11; students, $9; seniors, $8.25; age 12 and younger, $8. 202-966-6000.
Shakespeare’s “The Rape of Lucrece,” performed by the Taffety Punk Theatre Company with the loud coalescence of actors, dancers and musicians bending Shakespeare’s epic poem to their will. 8 p.m. Thursdays-Saturdays, continues through Oct. 6, Capitol Hill Arts Workshop, 545 Seventh St. SE. $10. 202-547-6839 or http://www.taffetypunk.com/.
“Diana Vreeland: The Eye Has to Travel,” a film about Vreeland’s life as a fashion leader. Call theater for showtimes, Avalon Theatre, 5612 Connecticut Ave. NW. $11; students, $9; seniors, $8.25; age 12 and younger, $8. 202-966-6000.
“Won’t Back Down” film, about two mothers who work hard to transform their children’s failing inner city school, starring Maggie Gyllenhaal, Viola Davis and Holly Hunter. Call theater for showtimes, Avalon Theatre, 5612 Connecticut Ave. NW. $11; students, $9; seniors, $8.25; age 12 and younger, $8. 202-966-6000.
Pipe organ recital, organist Todd Davis performs works by Felix Mendelssohn, Ned Rorem and Louis Vierne. 12:15-1 p.m., National City Christian Church, 5 Thomas Cir. NW. Free, donations welcome. 202-797-0103.
Rogerio Souza and Friends concert, featuring Souza, samba and choro guitarist, with clarinetist Andy Connell, bass player Leo Lucini and drummer Alejandro Lucini. 1:15 p.m., Georgetown University, McNeir Hall, 37th and O streets NW. Free. 202-687-2787.
The War of 1812: A Forgotten War, a National Park Service ranger discusses what Uncle Sam, the burning of Washington, the U.S. flag and forging a nation have in common. 2-4 p.m., Thomas Jefferson Memorial, 900 Ohio Dr. SW. Free. Call Lowell Fry, 202-438-9603.
Philosophy lecture, Catholic University’s Kevin White discusses “Aquinas and De Anima III.6: A Response to Kurt Pritzl.” 2 p.m., Catholic University, Aquinas Hall Auditorium, 620 Michigan Ave. NE. Free. 202-319-5259.
Brian Settles jazz saxophonist, concert. 6 p.m., Kennedy Center, Millennium Stage, 2700 F St. NW. Free. 202-467-4600.
Washington Studio School art opening reception, for a collection of drawings, paintings and sculpture by faculty members. Reception, 6-8 p.m. Friday; exhibit continues, 11 a.m.-5 p.m. weekdays, and weekends by appointment, through Oct. 12, Washington Studio School, 2129 S St. NW. Free, reservations appreciated. 202-234-3030 or www.washingtonstudioschool.org.
Molly Brown’s Titanic Journey, a National Park Service ranger discusses the survivor of the Titanic sinking. 6 p.m., Titanic Memorial, 1425 Fourth St. SW. Free. Call Kathy Kagle, 202-438-5377.
Garden photography, discussion of how gardens can provide inspiration for photographers. 6:30-8:30 p.m., U.S. Botanic Garden, Conservatory Classroom, 100 Maryland Ave. SW. $15, registration required. 202-225-8333.
“The !!!! Beat” 1966 TV show, library music specialist Larry Appelbaum shows episodes of the show, featuring rhythm and blues performers such as Otis Redding, Patti LaBelle and the Bluebelles, Tammy McKnight and others. 7 p.m., Hill Center at the Old Naval Hospital, 921 Pennsylvania Ave. SE. Free, reservations required. 202-549-4172 or www.hillcenterdc.org/home/programs.
London: Music From the City of Shakespeare, Orlando Gibbons’s “The Cries of London,” pieces for mixed instruments by Thomas Morely and music for worship by William Byrd performed by the Folger Consort and tenor Aaron Sheehan; arrive at 7 p.m. Friday for a pre-concert discussion. 8 p.m. Friday, 5 and 8 p.m. Saturday, 2 p.m. Sunday, Folger Shakespeare Library, 201 East Capitol St. SE. $37. 202-544-7077.
Concert at the Sonic Circuit Festival 2012, composer, electric violinist and vocalist Mia Zabelka and multimedia artist, filmmaker, editor, photographer Elise Passavant perform. 7 p.m., Atlas Performing Arts Center, 1333 H St. NE. $40; students, $30. 202-399-7993 or http://dc-soniccircuits.org/.
“One Night With Janis Joplin,” a performance about the life of the rock legend, featuring Mary Bridget Davies and Joplin’s band Big Brother and the Holding Company; also featuring Sabrina Elayne Carten as a blues singer who pays homage to the performers who influenced Joplin’s blues-rock style. 8 p.m. Fridays and Thursdays, 2 and 8 p.m. Saturdays, 2 and 7:30 p.m. Sundays, 7:30 p.m. Tuesdays-Wednesdays, Arena Stage, 1101 Sixth St. SW. $45-$94, subject to change and based on availability. 202-488-3300 or www.arenastage.org.
“Zero Cost House,” Pig Iron Theatre Company performs Toshiki Okada’s play about a Japanese victim of the recent tsunami, earthquake and nuclear disaster in Japan. 8 p.m. Friday, 2 and 8 p.m. Saturday, Davis Performing Arts Center, Gonda Theatre, 37th and O streets NW. $20; students, $10. 202-687-2787 or www.performingarts.georgetown.edu.
Congress Heights Recreation Center renovation, join volunteers, including middle and high school students working for community service credits, who will renovate the center and grounds. Sponsored by D.C. Building Industry Association. 7 a.m.-5 p.m., 611 Alabama Ave. SE. Free. Call Gail Edwards at 202-966-8665 or www.dcbia.org.
Maine Avenue “End of Summer” church fair, music, crafts, bake sale, moon bounce, face painting, cupcake decorating, secondhand clothing and housewares for sale, food vendors with fish sandwiches. 9 a.m.-4 p.m., St. Augustine’s Episcopal Church, Sixth Street and Maine Avenue SW. Admission, free. 202-554-3222 or firstname.lastname@example.org.
Cathedral tower climb, walk up 333 steps, learn what it takes to become a bell ringer; climbers must be at least four feet tall and have no fear of heights; no large bags or backpacks permitted. 9:30, 10:15 and 11 a.m, Washington National Cathedral, Wisconsin and Massachusetts avenues NW. $20, reservations required; a few tickets available at the door. 202-537-3119, www.nationalcathedral.org or email@example.com.
National Theatre kids reptile program, Michael Shwedick’s Reptile World presents alligators and snakes while teaching about ecology. 9:30 and 11 a.m., National Theatre, 1321 Pennsylvania Ave. NW. Free ticket, one per person, distributed 30 minutes before each show. 202-783-3372.
D.C. Green Festival, Green America and Global Exchange host the celebration of sustainability and ecological balance, featuring do-it-yourself demonstrations, a green film festival, speakers, workshops and a marketplace; children’s activities include crafts using recycled materials. 10 a.m.-7 p.m. Saturday, 11 a.m.-3 p.m. Sunday, Walter E. Washington Convention Center. $10-$65. Michael Miller, 202-675-4129 or www.greenfestivals.org/wdc/updates.
Virginia (Capital) Avenue walking tours, a National Park Service ranger leads a walk along Virginia Avenue from Rock Creek Park to the Smithsonian, meet at Thompson’s Boat House, Rock Creek Parkway at Virginia Avenue NW, 10 a.m.-noon and 4-5 p.m.; for a walk from the Smithsonian to Garfield Park, meet at Smithsonian Metro station, Mall exit, noon-2 p.m. and 6-8 p.m., Library of Congress, Jefferson Building, West Plaza, 10 First St. SE. Free. Call Tim Moore, 240-375-5755.
Using what you have to redecorate your home in hours, interior designer Lauri Ward, a pioneer and expert in one-day redecorating, uses slides and videos as she demonstrates how to quickly and inexpensively work with the space, furniture and accessories on hand to create a fresh new look in just a few hours. 10 a.m.-3:30 p.m., S. Dillon Ripley Center, 1100 Jefferson Dr. SW. $120. 202-633-3030.
Freedom Plaza walking tour, a National Park Service ranger discusses carved quotations of previous visitors. 10:30 a.m., Freedom Plaza, the fountain, Pennsylvania Avenue NW, between 13th and 14th streets. Free. Call David Newson, 202-606-8691.
Hill Center open house, meet the instructors, sample new fall events and classes, food, live performances and more. 10:30 a.m.-2:00 p.m., Hill Center at the Old Naval Hospital, 921 Pennsylvania Ave. SE. Free. 202-549-4172 or www.hillcenterdc.org.
Fall harvest tea, tour the 1816 National Historic Landmark mansion and enjoy traditional Victorian tea service with tea sandwiches, scones, delicious desserts and historic tea blends. 10:30 a.m., Tudor Place, 1644 31st St. NW. $30. 202-965-0400 or http://tudorplacefallharvesttea.eventbrite.com/.
Church organ dedication, Bishop Mariann Edgar Budde leads a dedication of the new Casavant Freres pipe organ in a newly restored chancel; the Saint John’s Choir sings festive hymns and anthems to celebrate the feast of Saint Michael and All Angels; reception follows in Blake Hall. 11 a.m., St. John’s Episcopal Church, Georgetown Parish, 3240 O St. NW. Free. 202-338-1796.
Exploring Ballet With Suzanne Farrell, for non-dancer adults who have never participated in this class, discover how it feels to dance as Farrell leads this movement class; leotard, leggings, ballet slippers and ballet skirt are welcome. 11 a.m., Kennedy Center, Hall of Nations, 2700 F St. NW. $35. 202-467-4600.
“12 Angry Men,” Sidney Lumet’s 1957 film about 12 jurors trying to reach a verdict in a murder case, starring Henry Fonda and Lee J. Cobb. Noon, National Archives, McGowan Theater, Constitution Avenue and Ninth Street NW. Free. 202-357-5000.
Canning demonstration, Bernadine Prince demonstrates the canning of tomato jam and fresh-packed tomato sauce for winter use; samples given. Noon, U.S. Botanic Garden, Conservatory Garden Court, 100 Maryland Ave. SW. Free. 202-225-8333.
Lemon-scented herbs, discussed by members of the South Jersey Unit of the Herb Society of America. 1-4 p.m., U.S. National Arboretum, 3501 New York Ave. NE. Free. 202-245-2726.
“The Fireman’s Ball,” 1967 Czech film about a house that burns down while the annual ball erupts in mayhem, in Czech with English subtitles. 1 p.m., National Gallery of Art, East Building Concourse, auditorium, Fourth Street and Constitution Avenue NW. Free. 202-842-6799.
Latin American history, a National Park Service ranger leads a walking tour of memorials relating to the history. 1-4:30 p.m., Organization of American States Building, 200 17th St. NW. Free. Call Mike Balis, 202-438-9710.
“The War of 1812: A Forgotten War,” a National Park Service ranger discusses what Uncle Sam, the burning of Washington, the U.S. flag and forging a nation have in common. 1-3 p.m., Thomas Jefferson Memorial, 900 Ohio Dr. SW. Free. Call Lowell Fry, 202-438-9603.
“Black Peter” and “Loves of a Blonde,” two Milos Forman films about characters who observe that things are not always as they seem to be; shown in Czech with English subtitles. 3 p.m., National Gallery of Art, East Building, Fourth Street and Constitution Avenue NW. Free. 202-842-6799.
Franz Joseph Haydn’s “Creation,” performed by the Cathedral Choir, a period classical orchestra, soprano Gillian Keith, tenor Rufus Muller and bass Christopheren Nomura. 5 p.m., Washington National Cathedral, Wisconsin and Massachusetts avenues NW. $25-$80. 202-537-6200 or www.nationalcathedral.org
Presidential pets, a National Park Service ranger discusses pets of U.S. presidents; optional to bring a leashed dog. 5-7 p.m., Franklin Delano Roosevelt Memorial, Ohio Drive NW. Free. Call Eddy Kahle, 202-462-6841.
Clarinetist Rob Patterson concert, 6 p.m., Kennedy Center, Millennium Stage, 2700 F St. NW. Free. 202-467-4600.
“Opera in the Outfield,” Washington National Opera’s live opera broadcast of Mozart’s “Don Giovanni,” stage fighting demonstrations led by Robb Hunter, flamenco dancing by Furia Flamenca, a screening of the Warner Bros. cartoon “What’s Up Doc?,” prizes and more; doors open, 5 p.m. performance, 7 p.m., Nationals Park, 1500 South Capitol St. SE. Free. 202-467-4600.
Unity Church community concert, soprano Ruby Weston, baritone Rodney Wing and pianist Marcus Smith perform arias and music by Purcell, Robert Schumann, Mozart, Puccini and Hugo Wolf; with reception. 7:30 p.m., Unity Church, 945 G St. NW. Donations requested. 202-393-2727.
“Korean Art and Soul,” a performance of traditional and modern Korean music and dance; with a Korean traditional dress fashion show. 7:30 p.m., Kennedy Center, Terrace Theater, 2700 F St. NW. $50. 202-467-4600.
The Dream Act and marriage equality issues, discussed by Maryland Del. Heather R. Mizeur, representing Takoma Park and Silver Spring. 10 a.m., St. John’s Episcopal Church, Lafayette Square, 1525 H St. NW. Free. 202-347-8766.
Revolution on the mall, a guided bike ride, about three hours, led by a National Park Service ranger, with stops to discuss the mall’s memorials; take your own bike, water and snacks, helmets required. 11 a.m.-2 p.m., Thomas Jefferson Memorial, 900 Ohio Dr. SW. Free. Call Richard Ayad, 202-438-3456.
Jam-making demonstration, Marisa McClellan, author of “Food in Jars,” teaches how to make pear vanilla jam. Noon, U.S. Botanic Garden, Conservatory Garden Court, 100 Maryland Ave. SW. Free. 202-225-8333.
Exploring Alternative Energy Uses in the Landscape, faculty and students of Alfred State University discuss enhancing a landscape with elements powered by renewable energy, focusing on outdoor lighting, timers, water pumps, wind turbines, solar panels and more. 1-5 p.m., U.S. National Arboretum, 3501 New York Ave. NE. $29. 202-245-2726 or www.usna.usda.gov.
Local Latino history, a National Park Service ranger leads a walking tour exploring the history of the Latino community in Columbia Heights and Mount Pleasant. 1-5 p.m., meet at the Columbia Heights Metro station exit. Free. Call Mike Balis, 202-438-9710.
From Whistler’s Chelsea to the D.C. Waterfront, visit the exhibit “Whistler’s Neighborhood: Impressions of a Changing London” and learn how city modernization changed 19th-century London, then walk to the Southwest Waterfront to tour a modern neighborhood in flux, co-presented with Cultural Tourism D.C. 1 p.m., meet at the Freer Gallery’s north lobby, Jefferson Drive and 12th Street SW. Free, registration required. 202-661-7581 or www.culturaltourismdc.org.
What the Old Post Office Tower Saw, a National Park Service ranger discusses stories relating to the fight for women’s right to vote during the suffragette movement. 2 p.m., Old Post Office Pavilion, tower, 1100 Pennsylvania Ave. NW. Free. Call Julia Clebsch, 202-606-8691.
John Quincy Adams biography talk, Harlow Unger discusses his book. 2 p.m., meet in front of the John Quincy Adams portrait, National Portrait Gallery, Eighth and F streets NW. Free. 202-633-1000.
J.J. McCracken: Contemporary Responses to Ancient Iranian Arts, the local artist discusses her artworks, including vessels inspired by the ancient Iranian ceramics on view in the Sackler Gallery. 2 p.m., Freer Gallery of Art, Meyer Auditorium, Jefferson Drive and 12th Street SW. Free. 202-633-1000.
U.S. Navy Band Brass Quartet concert, works by Wagner, Prokofiev, Coltrane and Ellington; followed by a reception for a fiber art exhibit by Karen Schulz. 3 p.m., Metropolitan Memorial United Methodist Church, sanctuary, 3401 Nebraska Ave. NW. Free. 202-363-4900.
“Amadeus,” a screening of a “director’s cut” of the film about a brash Mozart and his rival, Antonio Salieri. Starring Tom Hulce and F. Murray Abraham. 4 p.m., National Gallery of Art, East Building Concourse, auditorium, Fourth Street and Constitution Avenue NW. Free. 202-842-6799.
Pipe organ recital, Christopher Betts performs works by J. S. Bach, Nikolas Bruhns, Max Reger, Percy Whitlock, Leo Sowerby, Alfred Hollins and Cesar Franck. 5:15 p.m., Washington National Cathedral, Great Choir, Wisconsin and Massachusetts avenues NW. Suggested donation, $10. 202-537-6200 or www.nationalcathedral.org .
Daniel Burnham Forum on Big Ideas, Eugenie L. Birch, professor and chair of the Graduate Group in City Planning, University of Pennsylvania, examines challenges facing America’s communities and offers possible solutions to guide us over the next 50 years. 5:30 p.m., National Building Museum, 401 F St. NW. $15; students, $10, registration required. 202-272-2448.
“Who Won the Civil War?,” a National Park Service ranger leads a walking tour and discusses the North’s military win over the South and whether all its objectives for society were accomplished. 6-8 p.m., Washington Monument, 15th Street and Constitution Avenue NW. Free. Call Lowell Fry, 202-438-9603.
Conveyor band art-pop concert, featuring synthesizers, acoustic guitar and vocal harmonies. 6 p.m., Kennedy Center, Millennium Stage, 2700 F St. NW. Free. 202-467-4600.
Museum classical concert, the Catholic University of America Symphony Orchestra and Chamber Choir perform works by Rimsky-Korsakov and Mozart; arrive at 6 p.m. for Stephen Ackert’s talk about Mozart and Prague. Concert, 6:30 p.m., latecomers not admitted, National Gallery of Art, West Building Garden Court, 600 Constitution Ave. NW. Free. 202-737-4215.
Duthoit – Sores - Hautzinger Trio in concert, a concert of metaimprovisational music at the intellectual, cultural and spiritual borders of Eastern and Western Europe. 7 p.m., Atlas Performing Arts Center, 1333 H St. NE. $40; students, $30. 202-399-7993 or http://dc-soniccircuits.org/.
The Building Zone, for children 2-6 with an adult, children learn about building trades through play. 10 a.m.-4 p.m. Mondays-Saturdays, 11 a.m.-4 p.m. Sundays, through Oct. 31, National Building Museum, 401 F St. NW. $3. 202-272-2448.
Botanic Garden lunchtime tour, museum volunteers lead a tour of plants and discuss what manila folders, Chanel No. 5, vanilla and fossil fuels have in common; plus discussion of possible breakthroughs in medicinal plant research. Noon Mondays and Wednesdays, through Oct. 29, U.S. Botanic Garden, Conservatory Garden Court, 100 Maryland Ave. SW. Free. 202-225-8333.
“Art and Espionage: Michael Straight’s Giorgione,” a lecture by David Alan Brown, curator of Italian and Spanish paintings. 12:10 and 1:10 p.m., National Gallery of Art, East Building Concourse, Small Auditoriuim, Fourth Street and Constitution Avenue NW. Free. 202-737-4215.
Closing art exhibit reception, for “SOATUL,” works by CHAW community members. Reception. 6-8 p.m., Capitol Hill Arts Workshop, 545 Seventh St. SE. Free. 202-547-6839 or www.chaw.org.
“School’s In” staged reading, by members of the Young Playwrights Theater, followed by discussion with the student playwrights. Reception, 6:30 p.m.; reading, 7 p.m., Capitol Hill Arts Workshop, 545 Seventh St. SE. Free. 202-547-6839.
“Cultures in Motion: James Wong Howe Himself,” actor Stan King reenacts Howe in an interview conducted by producer Jewell Robinson using stories from the life of the Chinese American cinematographer was nominated for 10 Oscars and won three. 7 p.m., National Portrait Gallery, McEvoy Auditorium, Eighth and F streets NW. Free; reservations suggested. 202-633-8520 or NPGPublicPrograms@si.edu.
David Byrne music book talk, the co-founder of Talking Heads discusses his book “How Music Works” and how the advent of recording technology in the 20th century changed people’s relationship to playing, performing and listening to music. 7-9 p.m., National Museum of Natural History, Baird Auditorium, 10th Street and Constitution Avenue NW. $27. 202-3030.
Archives’ Online Public Access (OPA), learn how to use the online service to find the archives’ records. 11 a.m., National Archives, 700 Pennsylvania Ave. NW. Free. 202-357-5000.
Children’s book reading, for age 4 and older, a museum staff member reads Jean-Luc Fromental’s “Rapido’s Next Stop,” about a messenger who delivers packages in a city. 10:30 and 11:30 a.m., National Building Museum, 401 F St. NW. $3. Free. 202-272-2448.
Climate science and policy discussion, ecologist Peter Frumhoff discusses whether scientific findings can or should inform the public discourse on climate-change policy. 11:30 a.m., Library of Congress, Madison Building, Mary Pickford Theater, 101 Independence Ave. SE. Free. 202-707-1212.
War on the Waters: The Union and Confederate Navies, 1861–1865, Civil War historian James M. McPherson discusses the war’s naval campaigns and leaders. Noon, National Archives, McGowan Theater, Constitution Avenue and Ninth Street NW. Free. 202-357-5000.
Washington Bach Consort concert, 12:10 p.m., Church of the Epiphany, 1317 G St. NW. Suggested donation, $5. 202-347-2635, Ext. 20.
Salman Khan: New Approaches to Learning, the founder of the Khan Academy discusses his vision for a free, quality education for anyone, anywhere as a worldwide goal that is within reach for the first time in this digital age via video tutorials, attracting thousands of students worldwide. 6:45 p.m., S. Dillon Ripley Center, 1100 Jefferson Dr. SW. $25. 202-633-3030.
Program on oceans,David E. Guggenheim presents a multimedia underwater journey and discusses work to protect and restore oceans. 7 p.m., American University, Wechsler Theater, third floor, Mary Graydon Center, 4400 Massachusetts Ave. NW. Free. 202-885-3408 or firstname.lastname@example.org.
“Shear Madness,” performance of a comedy-mystery set in Georgetown; with audience participation to help solve a mock murder. 8 p.m. Tuesdays-Fridays, 8 p.m. Thursdays and Fridays, 6 and 9 p.m. Saturdays, 3 and 7 p.m. Sundays, Kennedy Center, Theater Lab, 2700 F St. NW. $48. 202-467-4600.
Introduction to genealogy, archives specialist Katherine Vollen discusses federal records of interest to beginning genealogists. 11 a.m., National Archives, 700 Pennsylvania Ave. NW. Free. 202-357-5000.
U.S. Army Chorus concert, 12:10-12:45 p.m., St. John’s Episcopal Church, Lafayette Square, 1525 H St. NW. Free. 202-347-8766.
“The Man Nobody Knew: In Search of My Father, CIA Spymaster William Colby” documentary film, a very personal film that includes interviews with veteran CIA officers, OSS veterans, government officials and nationally recognized journalists. 6:30 p.m., International Spy Museum, 800 F St. NW. $9. 202-393-7798.
Library lecture, Jonathan Pourzal discusses “The Power of African-Centered Consciousness During the Age of Transformation and Technology.” 7 p.m., Woodridge Library, 1801 Hamlin St. NE. Free. 202-541-6226.
“Homeland” film, about three generations of a Greek family torn apart by an inter-family adoption, in Greek with English subtitles. 8 p.m., Avalon Theatre, 5612 Connecticut Ave. NW. $11; students, $9; seniors, $8.25; age 12 and younger, $8. 202-966-6000.
Thurgood Marshall Remembered, a National Park Service ranger discusses the life of the Supreme Court associate justice. 10 a.m., Lincoln Memorial, 23rd Street NW and West Potomac Park. Free. Call Joseph Mohr, 202-359-1532.
Smithsonian Seeds and Sprouts!, for ages 4-10, Smithsonian Gardens tell a story and explore the tiny elements that make the Institution’s gardens grow, lead a seed safari and plant seeds that will take root at home. 10:15 and 11:15 a.m. and 12:15 p.m. Oct. 4-5, Discovery Theater, meet at the Haupt Garden, behind Smithsonian Castle, Entrance Gate next to Ripley Center, 1100 Jefferson Dr. SW. $8; ages 2-16, $6; 1 and younger, $3. 202-633-8700 or www.discoverytheater.org.
Forged in Fire: Cathedral Ironwork, a docent leads a tour of wrought iron works, including depictions of creatures and flowers. 3 p.m. Oct. 4, 1:30 p.m. Oct. 7, Washington National Cathedral, main entrance welcome desk, Wisconsin and Massachusetts avenues NW. $10, reservations suggested. 202-537-6200 or www.nationalcathedral.org.
D.C. Modern Preservation, a panel of architects, developers and preservationists discuss the 2006 study of Washington’s mid-20th-century architecture design and progress made on preserving this building stock while upgrading it for current use. 6:30-8 p.m., National Building Museum, 401 F St. NW. $20; students, $12. Free. 202-272-2448.
Voices of Strength dance concert, featuring a range of dance genres; followed by a discussion. 7:30 p.m. Oct. 4-5, Kennedy Center, Terrace Theater, 2700 F St. NW. $36. 202-467-4600.
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