![Sketch of Penaud's helicopter](https://www.historynet.com/wp-content/uploads/2021/12/penauds-helicopter.jpg)
Alphonse Penaud of France invented a toy helicopter in 1870, powered by a rubber band. The toy inspired the Wright brothers to explore human flight. (Image: HNA)
Alphonse Penaud of France invented a toy helicopter in 1870, powered by a rubber band. The toy inspired the Wright brothers to explore human flight. (Image: HNA)