Let's use the example of mail, back in the older days they were most likely transported by people. Until people domesticated the horse, messengers or messenger animals, such as birds, could have been used to transport them. Domesticated animals changed the work force for the better, mail was more efficient but it could still take weeks to get certain letters to far away people. As technology advanced, so did transportation, as of today, tradition mail is brought by mail carriers and is still used. The greatest technological success is the email, and can get mail to another country in a matter of seconds. From mail carriers taking months to deliver letters, to a matter of seconds, technology has paved the way for better communication between people in general.