1770-1790 1770-1790. L'opera secret au XVIIIe siecle. Aventures et intrigues secretes racontees d'apres les papiers inedits conserves aux Archives de l'Etat de l'Opera. This book, "1770-1790", by Adolphe Jullien, is a replication of a book originally published before 1880. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.