first take-off of the first plane

According to this poster -- which seems to have been produced simply for patriotic purposes -- C'est à la France que le monde doit ses ailes, Clement Ader, Premier décollage du premier avion, 9 octobre 1890 (it's to France that the world owes its wings, Clement Ader, First take-off of the first plane, 9 October 1890)