In the 1830s (as early as 1830; as late as 1837) he worked on a futurist or science-fiction work, "A History of the Future". It predicted inventions similar to radio and television, and interplanetary communication using balloons. Written in French, it was never completed and was partly destroyed by the author. Other French-language works by Mickiewicz include the dramas "Les Confederes de Bar" (The Bar Confederates) and "Jacques Jasiński, ous les deux Polognes" (Jacques Jasiński, or the Two Polands). These would not achieve much recognition, and would not be published till 1866.