1. Lighter than Air

2. The first manned hot-air balloon, designed by the Montgolfier brothers, takes off from the Bois de Boulogne, Paris, on November 21, 1783.

3. Battle of Fleurus, 1794, the French army uses a balloon for observation of the enemy.

4. Balloon designs, circa 1881.

5. American Civil War, 1860. A gas balloon being inflated before a battle.

6. Dirgibles – balloons that can be steered and propelled.

7. Blimps – airships without rigid internal frames.

8. A German biplane shooting down a tethered ‘kite’ observation balloon

9. Count Zeppelin’s first airship, 1900.

10. Inventor of the ‘Zeppelin’, Count Ferdinand Graf Zeppelin, c. Bundesarchiv, Bild 146-1972-099-15 / CC-BY-SA

11. American airship under construction, circa 1920.

12. Zeppelin LZ18 (L2)

13. The German battlecruiser SMS Seydlitz with a Zeppelinflying overhead

14. British airship R101, 1929.

15. US Navy airship over New York, 1932

16. The Zeppelin Hindenburg crashing in flames on May 6, 1937 at New Jersey, USA.