Hot air balloon ride is one of the oldest modes of transportation that was out. The concept came up from two French brothers: Joseph-Michel and Jacques-Etienne Montgolfier, about two hundred years ago. A public demonstration was carried out by them on June 4, 1783 with the encouragement of King Louis XVI. https://medium.com/@sky-waltz/go-with-the-flow-in-marvelous-hot-air-balloon-fab1c3ffc592