What is the oldest work protected by copyright in the U.S.? http://blog.librarylaw.com/librarylaw/2010/03/factoids-what-is-the-oldest-work-protected-by-copyright-in-the-us-what-work-will-have-the-longest-protection.html Autor: Klaus Graf Historiker und Archivar, Blogger Alle Beiträge von Klaus Graf anzeigen