For the emergence of a public notice board, modern mankind should thank a team of friends from the American city of Berkeley, California.
In the 70s, young people who were very good at computers decided to create something like an "information flea market". To do this, they used computers connected to each other.
The “market” that was created was very slow, as it used several 110-baud modems in operation. Modem speed did not exceed 10 characters per minute. But this did not prevent people from exchanging information, which was not very different from our days. Anyone could create a keyword - a tag for the search, and other members of the social board could conduct conversations, leaving their thematic notes. It was free to read such messages, but the posting cost 25 cents.
The same decade brought the electronic bulletin board (BBS) to humankind. Now it was possible to conduct a discussion about your hobbies or interests by going online. But there were certain zonal restrictions. They contributed to the separation from the network and the conduct of real communication with living people organizing thematic gatherings.
In the early 1980s, Usenet reached popularity in the world of scientists. Initially, it was supposed to be a kind of forum where computer scientists and other scientists could conduct discussions of the scientific world. Such a forum very quickly crossed the boundaries of academic use and became a favorite and popular place for thematic conversations among users all over the world.
