You too can sound like tedious Second Empire bourgeois making small talk if you follow Flaubert's Dictionary of Received Ideas! A satrical collection of cant, cliche, and "expected" opinions of the French middle-classes around 1870 - List Of Entrees alphabetical - List by subject.
The Historic American Sheet Music archive at the Duke University Library has over 3000 pieces published in the United States available online, from the 1850s up to 1920. Composers represented include well-known names such as Scott Joplin, Irving Berlin, and John Philip Sousa. All the music is now in the public domain, and may be printed and performed freely. [Note: Language or stereotypes may occasionally be NSFW.]