After experimenting with unmanned balloons and flights with animals, the first tethered balloon flight with humans on board took place on 19 October 1783, with the scientist Jean-François Pilâtre de Rozier, the manufacture manager, Jean-Baptiste Réveillon and Giroud de Villette, at the Folie Titon in Paris.
Text from Wikipedia. https://en.wikipedia.org/wiki/History_of_ballooning