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History of spaceflight - Wikipedia
History of rockets - Wikipedia
The First Rocket Built for Space | Smithsonian
The history of rockets | Space
Brief History of Rockets - NASA
Dr. Robert H. Goddard, American Rocketry Pioneer - NASA
Sputnik and The Dawn of the Space Age - NASA
| How Things Fly - Smithsonian Institution
The V-2 | The World's First Space Rocket - Spaceopedia