How does the letter that you send reach its destination? In early days, mail was carried by riders on horseback. Sometimes, boats and carriages 
would also carry parcels and letters. Fees had to be paid in person to the carrier, both by the person sending the mail, and the person receiving it.
In 1858, letter boxes were introduced ob streets. People did not have to go to the post office to mail their letters or pay fees. Free delivery of service was also started by 1863. Letters and parcels were carried by train to different cities and later on, to villages in rural areas as well. The coming of railways really increased the efficiency of the postal systems, and made delivery much faster. Today, railroads, automobiles, and airplanes are all used by the Post Office to bring your mail to you as fast as possible.