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The French word travailed from which the word travel originates means ‘to work’. This meaning was perfectly apt in ancient times, when to travel meant a struggle against nature.  But modern means of transportation have conquered distances and natural barriers. Men acquired these facilities after hundreds of years of experimentation through trail and error. When early man wanted to go from one place to another, he walked. When he had a heavy load to move, he carried it. Then, he found it was easier to drag his load on branches or sticks lashed together. Later, people learned to train animals to carry packs and pull their crude sleds.

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