We know D.C. Get our free newsletter to stay in the know.

Most students of American history will remember that without telecommunications pioneer Alexander Graham Bell, the iPhone would never have been invented. But Bell’s trailblazing work in the field of sound recording is frequently overlooked. In the late 19th century, his D.C.-based Volta Laboratory invented the first method of capturing and playing back sounds. One of the first sounds the researchers recorded was Bell’s own voice, but those recordings were thought to be lost—until recently, when researchers from Smithsonian’s National Museum of American History and the Library of Congress discovered a wax-on-binder-board disc inscribed with Graham’s initials (pictured). Now listeners can access those recordings in the museum’s new exhibition, “Hear My Voice.” Read more >>> The exhibition is on view daily 10 a.m. to 5:30 p.m. at the National Museum of American History, 14th Street and Constitution Avenue NW. Free. (202) 633-1000. americanhistory.si.edu. (Tim Regan)


Red Apron Butcher begins offering bone broth to-go today at its Penn Quarter shop. The meat juice is made from the bones of the whole-animal butchery’s sustainably raised meats. The broth will be available in three flavors: pork, beef, and smoked chicken. Cups will be sold in two sizes, 8 oz. and 12 oz. priced at $4.25 and $5.50, respectively. Spice sachets will be sold separately to add a little extra flavor at 50 cents each. Red Apron Butcher, 709 D. St. NW. (202) 524-5244.  redapronbutchery.com(Morgan Hines)


The Goethe-Institut continues its Georgian cinema series by screening two short films by director Salomé JashiFelicità, about a woman who attends her husband’s funeral via phone when her visa won’t allow her to leave the country; and Bakhmaro, a documentary about a decaying building in a rural Georgian town. 6:30 p.m. at 812 7th St. NW. Free.

Author and speaker Wes Moore reads from his new book of life lessonsThe Work: My Search for a Life that Matters, a continuation of his previous book, The Other Wes Moore, at Politics & Prose. 7 p.m. at 5015 Connecticut Ave. NW. Free.

Dark German-American metal band Downfall of Gaia performs at DC9 with Foehammer and Myopic. 8:30 p.m. at 1940 9th St. NW. $10.

Want ToDo ToDay sent to your inbox five days a week? Sign up here.