1940 Inventions & Innovations Events — Verified Historical Highlights
1940 Inventions & Innovations Events — Verified Historical Highlights | TakeMeBack.to
- 20 May Igor Sikorsky Unveils Helicopter Invention: On May 20, 1940, Igor Sikorsky unveiled his helicopter design, which would later lead to the development of the first practical helicopter. This invention revolutionized aviation and paved the way for modern rotorcraft. source: britannica.com
What happened in 1940?
Discover what the world looked like in 1940: