Answer» - In 1496 A.D., many men attempted to fly by tying wings on their cloth. But they could not succeed. Unfortunately, all these adventurers met with a tragic end.
- In 1783 A.D., three animals – a sheep, a hen and a duck were sent in a hot air balloon in France.
- In 1853 A.D., Sir George Cayley built a contraption which floated for some time before touching down.
- In 1891 A.D., Otto Lilienthal built a glider successfully.
- In 1903 A.D., the Wright Brothers built a machine which flew for a while. Thus, finally man was successful in his attempts to fly.
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