User:Korkemxx/Bulletin board

Bulletin Board — the place where the ads are placed (messages for General information), usually temporarily and free of charge[source is not specified 170 days].

Аncient Greece
In ancient Athens, the monument of eponyms was used as the official Bulletin Board.

The ads were recorded on the white-washed boards (leucomela, etc. etc. λευκώματα). According to p. P. ), the boards are recorded lists of efebos (and then saved in bronze), lists conscript at the mobilization lists of those who promised cash donations in emergency situations and those who broke the promise, proposals for changes of legislation and messages about  excitation of litigation.

Аncient Rome
Like the Greeks, the Romans used bleached boards for announcment (lat. tabula dealbata, also known as lat. album — hence the modern word "album").On the official notice board, the pretorists published their edicts, lists of judges and jurors, the censors put the names of senators, the Great Pontiff described the events of the past year.

Ages
In the middle Ages, Church were used as Bulletin boards. It was on the door of the Castle Church in Wittenberg that Martin Luther placed his "95 theses" on October 31, 1517, thus beginning the Reformation.

Modern boards
The modern look of the Board for paper ads received with the invention in the XIX century[source is not specified 1613 days] office buttons. The cork Board was patented by George Brooks in 1923. At the end of the XX century, previously invented magnetic Bulletin boards became popular (cf. American patent of 1927 by Christian Hansen).

Electricity
After the invention of electric lighting, attempts were made to use it in Bulletin boards. In 1893, a giant projector was planned to display messages on the clouds. In 1918, the company eng. American Electrograph began to supply a scoreboard of light bulbs installed on the roof of the building and controlled by wires from the console, resembling a typewriter. The operator was able to show arbitrary text messages that could change every 10 seconds

COMPUTER
With the proliferation of computers came the possibility of the creation in 1978 of a virtual Bulletin Board.