We know that in early times messengers carried letters from place to place.(1)In Europe, however, it was not until the fifteenth century that a regular system of taking letters between towns was started.(2)The messengers travelled on horseback,and fresh horses were kept ready at different places along the main roads where the messengers stopped.?? ??Each of these stopping-places was known as a post and today we still keep the name“post office”. In the old days, such postal deliveries were only for important people.(3)The messengers would sometimes carry letters for ordinary were often careless.People began to ask for an easier and cheaper way of sending their letters and so, in the seventeenth century in Britain,a service was started for everyone.(4)At first this postal service carried letters only between a few very busy towns,but year it grew larger and better. Today every country has its post office, and these services play an important part in our life (5)If there were no post offices,we would find it difficult to keep in touch with our friends at a distance.