Published on June 4, 2012 On June 4, 1783, the two Montgolfier brothers, Joseph-Michel Montgolfier and Jacques-Étienne Montgolfier, demonstrated their unmanned hot air balloon at Annonay, Ardèche, France. Called a globe aérostatique by the brothers, the Montgolfier balloon was and remains to this day an astonishing invention — with it, the two brothers were the […]