First in Series of Library Events to Mark World War I Centennial. An exhibition showing how American artists galvanized public interest in World War I will open next month at the Library of Congress. "World War I: American Artists View the Great War" will open on Saturday, May 7 in the Graphic Arts Galleries on the ground floor of the Librarys Thomas Jefferson Building. The exhibition is free and open to the public Monday through Saturday, 8:30 a.m. to 4:30 p.m. It will remain open for a year, closing on May 6, 2017.