The Delaware Division of Historical and Cultural Affairs will sponsor 12 special programs during August at sites across the state.

Except where noted, programs are free and open to the public.

— “Lost Off Lewes: The British Warship DeBraak”: 9 a.m. Aug. 2, 9, 16, 23 and 30, and 5 p.m. Aug. 25, Zwaanendael Museum, 102 Kings Highway, Lewes. The tour will explore the history, artifacts and surviving hull section of this 18th century shipwreck. Admission is $10. To reserve: hca_zmevents@state.de.us or 645-1148.

— Third annual “Movie Night on the Lawn”: 6 p.m. Aug. 4, Buena Vista: A Delaware Country Estate, 661 S. Dupont Highway, New Castle. Screening of “Jumanji” provided by Ultimate Outdoor Movies plus the Professor Looney Photo Booth, live music, lawn games and food trucks from Out of The Ordinary Catering, Kona Ice and the Sweetest Rose Cupcake Co. will be featured. Guests are encouraged to bring blankets, lawn chairs and bug spray. Activities will begin at 6 p.m. The film will begin at 8:30 p.m. For more, call 323-4430.

— “Medicine Through the Wars: The Evolution of American Wartime Medicine”: 11 a.m. Aug. 4, The Old State House, 25 The Green, Dover. The lecture will examine the progress made in military medical practices and the role Delawareans played in that progress from the American Revolution through World War II. Free. Must register: 744-5054.

— “Sound, Stage, and Screen”: 1:30 p.m. Aug. 4, Johnson Victrola Museum, 375 S. New St., Dover. The program will examine the careers of two American musical pioneers of the early 20th century — George M. Cohan and Irving Berlin — and shows how they shaped the Broadway stage and Hollywood movies for more than 50 years. For more, call 739-3262.

— “Straws”: 7 p.m. Aug. 9, New Castle Court House Museum, 211 Delaware St. Screening of the documentary “Straws” by Linda Booker, which explores plastic straw litter, its impacts and how communities are making a sea change on plastic waste. Free reusable straws and bags will be available for participants until supplies run out. Co-sponsored by Plastic Free Delaware and New Castle Green: Net Zero Waste. For more, call 323-4453.

— Demonstrations by the Thistledown Fiber Arts Guild: 1 to 3 p.m. Aug. 11, John Dickinson Plantation, 340 Kitts Hummock Road, Dover. The program will explore spinning, weaving, knitting and other fabric arts. For more, call 739-3277.

— “The Empty Glass: Sherlock Holmes Comes to Dover”: 11 a.m. and 2 p.m. Aug. 18, The Old State House. Theatrical performance in which Sherlock Holmes, having solved every case in Victorian London, embarks on a journey to America. Arriving in Dover, he and his trusted colleague Dr. Watson attempt to solve the grisly murder case of “The Empty Glass.” The program is based on the works of Sir Arthur Conan Doyle and a Dover court case. Presented in coordination with Dover Comic Con. Free. Attendees are encouraged to arrive early for seating. For more, call 744-5054.

For more, visit history.delaware.gov.