How did people communicated long ago?

Answer 1

Originally, they talked to each other. Depending on what you refer to as 'a long time ago', symbols and art work were put on walls of caves by our primitive ancestors. This is a form of communicating ideas. Then writing was developed thousands of years ago; people left writing on fixed places like buildings or objects; and around that time, written words were carried from one place to another in the form of messages. Over a hundred years ago, electricity entered communication in the form of wires carrying messages, the telegraph. That was followed by a century of upgrading the technology until we have computers and smart phones.