Transportation has changed greatly through the years. In ancient times people were able to travel only on foot. However, about 8.000 years ago, they trained ox, donkey, and horse for transportation. The invention of wheel occurred about 5.000 years ago. From that time on, charges took place rapidly. The development of ships made seas and revers important. The invention of trains and automobiles improved land transportation. Air travel development rapidly in the first half of the twentieth century. Finally, in the second half of this century, space travel became a reality. Well honestly, one of my biggest dream is to travel the galaxies with a spacecraft.
(source: page 36, Let’s Write English by George E. Wishon and Julia M. Burks)
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