1940 Space & Exploration Events — Verified Historical Highlights

1940 Space & Exploration Events — Verified Historical Highlights | TakeMeBack.to
- 15 May First Successful Helicopter Flight in US: The Vought-Sikorsky US-300 completed the first successful helicopter flight in the United States, a pivotal moment in aviation technology and aerospace innovation.
What happened in 1940?
Discover what the world looked like in 1940: