Timeline BC ~ 1900 BC: Egyptian writers use non-standard Hieroglyphs in inscriptions of a royal tomb; supposedly this is not the first but the first documented example of written cryptography 1500 an enciphered formula for the production of pottery is done in Mesopotamia parts of the Hebrew writing of Jeremiah's words are written down in "atbash", which is nothing else than a reverse alphabet and one of the first famous methods of enciphering 4th century Aeneas Tacticus invents a form of beacons, by introducing a sort of water-clock 487 the Spartans introduce the so called "skytale" for sending short secret messages to and from the battle field 170 Polybius develops a system to convert letters into numerical characters, an invention called the Polybius Chequerboard. 50-60 Julius Caesar develops an enciphering method, later called the Caesar Cipher, shifting each letter of the alphabet an amount which is fixed before. Like atbash this is a monoalphabetic substitution.

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Commercial vs. Independent Content Commercial media aim towards economies of scale and scope, with the goal to maximize profits. As advertising money usually is their primary source of revenue their content very often is attuned to meet the needs of advertisers and marketers. Information necessary for a citizen's participation in the public sphere usually only plays a minor role in their programming, as it does not comply with the demands of an economic system whose principal aim is the generation of profit. They also virtually always are structured in accord with and to help reinforce society's defining hierarchical social relationships, and are generally controlled by and controlling of other major social institutions, particularly corporations. Independent content provider on the other hand mostly act on a non-profit basis and try to avoid dependence on corporate powers and the state. One of their main concerns is the critical observation of public interest issues. The central aim of independent content provider's activities usually is to bring aspects and standpoints neglected by the (commercial) mainstream media to the public and subvert society's defining hierarchical social relationships. Promoting public debate and an active civil society they engage in the organization of alert actions and information campaigns or create subversive art

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Telnet Telnet allows you to login remotely on a computer connected to the Internet.

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Electronic Messaging (E-Mail) Electronic messages are transmitted and received by computers through a network. By E-Mail texts, images, sounds and videos can be sent to single users or simultaneously to a group of users. Now texts can be sent and read without having them printed. E-Mail is one of the most popular and important services on the Internet.

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Internet Relay Chat (IRC) IRC is a text-based chat system used for live discussions of groups. For a history of IRC see Charles A. Gimon, IRC: The Net in Realtime, http://www.skypoint.com/~gimonca/irc2.html http://www.skypoint.com/~gimonca/irc2.html

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