The process for transmitting or transferring created data is a thousand of yrs previous strategy. In this way, you can publish anything at all educational on a piece of paper and send it for the ideal receiver. In previously times the human population was little and villages Or maybe cities https://johnathanavndr.wikienlightenment.com/8188650/some_of_the_various_varieties_of_letter_containers_prevailing_in_the_present_earth