Alexander StreetThemed collections of print documents, video, and recorded sound across disciplines; notable databases include Alexander Street Literature (cross-searchable collections covering the literatures of place, race, and gender), American Film Scripts Online (a searchable full-text database of screenplays and shooting scripts), Dance in Video (streaming video files of dance productions and documentaries by influential performers and companies of the 20th century), North American Immigrant Letters, Diaries, and Oral Histories (personal views of what it meant to immigrate to the United States and Canada between 1880 and 1950), Opera in Video (streaming video database containing important opera performances), Theatre in Video (containing performances of the world's leading plays and film documentaries in streaming video), and many others.