150
A
The Roman smoke signals network consisted of towers within a visible range of each other and had a total length of about 4500 kilometers. It was used for military signaling.
For a similar telegraph network in ancient Greece see
About 750
In Japan block printing is used for the first time.
868
In China the world's first dated book, the Diamond Sutra, is printed.
1041-1048
In China moveable types made from clay are invented.
1088
The first of the great medieval universities was established in Bologna. At the beginning universities predominantly offered a kind of do-it-yourself publishing service.
Books still had to be copied by hand and were so rare that a copy of a widely desired book qualified for being invited to a university. Holding a lecture equaled to reading a book aloud, like a priest read from the Bible during services. Attending a lecture equaled to copy a lecture word by word, so that you had your own copy of a book, thus enabling you to hold a lecture, too.
For further details see History of the Idea of a University,
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17th century Cardinal Richelieu invents an encryption-tool called grille, a card with holes for writing messages on paper into the holes of those cards. Afterwards he removes the cards and fills in the blanks, so the message looks like an ordinary letter. The recipient needs to own the same card
- Bishop John Wilkins invents a cryptologic system looking like music notes. In a book he describes several forms of steganographic systems like secrets inks, but also the string cipher. He mentions the so-called Pig Latin, a spoken way of encryption that was already used by the ancient Indians
- the English scientist, magician and astrologer
1605/1623 Sir Francis Bacon (= Francis Tudor = William Shakespeare?) writes several works containing ideas about cryptography. One of his most important advises is to use ciphers in such a way that no-one gets suspicious that the text could be enciphered. For this the steganogram was the best method, very often used in poems. The attempt to decipher Shakespeare's sonnets (in the 20th century) lead to the idea that his works had been written by Francis Bacon originally.
1671 Leibniz invents a calculating machine that uses the binary scale which we still use today, more advanced of course, called the ASCII code
18th century this is the time of the Black Chambers of espionage in Europe, Vienna having one of the most effective ones, called the "Geheime Kabinettskanzlei", headed by Baron Ignaz von Koch. Its task is to read through international diplomatic mail, copy letters and return them to the post-office the same morning. Supposedly about 100 letters are dealt with each day.
1790's Thomas Jefferson and Robert Patterson invent a wheel cipher
1799 the Rosetta Stone is found and makes it possible to decipher the Egyptian Hieroglyphs
1832 or 1838 Sam Morse develops the Morse Code, which actually is no code but an enciphered alphabet of short and long sounds. The first Morse code-message is sent by telegraph in 1844.
1834 the
1844 the invention of the telegraph changes cryptography very much, as codes are absolutely necessary by then
1854 the Playfair cipher is invented by Sir Charles Wheatstone
1859 for the first time a tomographic cipher gets described
1861 Friedrich W. Kasiski does a cryptoanalysis of the Vigenère ciphers, which had been supposed to be uncrackable for ages
1891 Major Etienne Bazeries creates a new version of the wheel cipher, which is rejected by the French Army
1895 the invention of the radio changes cryptography-tasks again and makes them even more important
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The largest media conglomerate in the world, Time Warner resulted from the merger of the publisher Time Inc. and the media company Turner Broadcasting Systems, Inc. in 1996. Time Inc. founded in 1922 primarily concentrated on magazines and books and in the 1950s moved into the broadcasting and entertainment industry, but in the 1970s announced that it was selling its broadcasting holdings and concentrating on cable television. In 1989 Time Inc. merged with Warner Communications Inc., which besides being a major motion-picture and television studio, was also one of the biggest U.S. music recordings producers and cable-television operators.
In January 2000 Time Warner merged with AOL (America Online) in a US$ 243.3 billion deal. Although AOL so far generated far less profit and turnover than Time Warner its quotation on the stock exchange was clearly higher, making Time Warner the junior partner (45 percent) in the new company. Through its merger with AOL, which is a major player in the online-business and owns several Internet-services like Compuserve, Netscape and Netcenter, the new media conglomerate could significantly enlarge its online presence and also complement its traditional media activities.
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The following selection does not claim to present an exhaustive listing, but rather picks some of the company's most important assets. Due to the rapid developments in the world of media giants the list is also subject to changes.
Cable TV Systems and Channels/Networks
Cable TV channels/networks (some part-owned): HBO, HBO Plus, HBO Signature, HBO Family, HBO Comedy, HBO Zone, Cinemax, MoreMAX, ActionMAX, ThrillerMAX, HBO en Espa-ol, Comedy Central, Court TV, HBO Ole, HBO Asia, HBO Central Europe,
Movies, TV, Video Production, and Movie Theaters
Warner Bros. film studio
Warner Bros. Television production studios
Warner Bros. Home Video
Turner worldwide Home Video
Turner Pictures
Castle Rock Entertainment movie production company
New Line Cinema movie production company
Warner Bros. film library
Turner Film Library
Hanna Barbera Cartoons
Owns many movie houses, with over 1,000 screens, around the world
Book Publishing
Time Life Inc.
Book-of-the-Month Club
Warner Books
Little, Brown and Company
Oxmoor House
Leisure Arts
Sunset Books
Magazines
Time, People, Sports Illustrated, Fortune, Life, Money, Parenting, In Style, Entertainment Weekly, Cooking Light, Baby Talk, First Moments, Coastal Living, Health, Progressive Farmer, Southern Accents, Southern Living, Sports Illustrated, For Kids, Sunset, Teen People, Time for Kids, Weight Watchers, Mutual Funds, Your Company, Asiaweek, President, Wallpaper. Hippocrates
Recorded Music
Warner Music Group
The Atlantic Group
Elektra Entertainment Group
Rhino Entertainment
Sire Records Group
Warner Bros. Records
Warner Music International
WEA Inc.
WEA Corp.
WEA Manufacturing
Ivy Hill Corp.
Warner Special Products
Alternative Distribution Alliance
Giant Merchandising
Deals with record labels include:
Maverick records
Tommy Boy Sub Pop
Qwest
143 Records
Internet and New Media
About 130 Websites including: CNN.com, AllPolitics.com, CNNSI.com, Time Digital, People, Southern Living, Sports Illustrated
Turner New Media
Online Services including: Compuserve, Netscape, Netcenter
Pro Sports Teams and Promotions
Atlanta Braves major league baseball team
Atlanta Hawks NBA basketball team
World Championship Wrestling
Goodwill Games
Other
Six Flags entertainment/excursion parks
Warner Bros. Movie World theme park
Over 150 Warner Bros. stores, plus Turner Retail Group
25 % stake in Atari
14 % stake in Hasbro
Business Connections with Other Media Companies
Joint ventures, equity interests or major arrangements with
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With the rise of a global economic system a desire to establish agreements, which protect works not only within national borders, but also within a "Union" of countries or on an international level, has been expressed. As a consequence a variety of multilateral treaties have been negotiated and adopted by governments. Those shall simplify practice through international standardization and mutual recognition of rights and duties among nations.
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Usually the subject matter of copyright is described as "literary and artistic works" - original creations in the fields of literature and arts. Such works may be expressed in words, symbols, pictures, music, three-dimensional objects, or combinations thereof. Practically all national copyright laws provide for the protection of the following types of works:
Literary works: novels, poems dramatic works and any other writings, whether published or unpublished; in most countries also computer programs and "oral works"
Musical works
Artistic works: whether two-dimensional or three-dimensional; irrespective of their content and destination
Maps and technical drawings
Photographic works: irrespective of the subject matter and the purpose for which made
Audiovisual works: irrespective of their purpose, genre, length, method employed or technical process used
Some copyright laws also provide for the protection of choreographic works, derivative works (translations, adaptions), collections (compilations) of works and mere data (data bases); collections where they, by reason of the selection and arrangement of the contents, constitute intellectual creations. Furthermore in some countries also "works of applied art" (furniture, wallpaper etc.) and computer programs (either as literary works or independently) constitute copyrightable matter.
Under certain national legislations the notion "copyright" has a wider meaning than "author's rights" and, in addition to literary and artistic works, also extends to the producers of sound recordings, the broadcasters of broadcasts and the creators of distinctive typographical arrangements of publications.
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Here the keys for encryption and decryption differ. There needs to exist a private key, which is only known to the individual, and a public key, which is published. Every person has her or his own private key that is never published. It is used for decrypting only. Mathematically the different keys are linked to each other, still it is nearly impossible to derive the private key from the public one.
For sending a message to someone, one has to look up the other's public key and encrypt the message with it. The keyholder will use his/her private key to decrypt it. While everybody can send a message with the public key, the private key absolutely has to stay secret - and probably will.
"The best system is to use a simple, well understood algorithm which relies on the security of a key rather than the algorithm itself. This means if anybody steals a key, you could just roll another and they have to start all over." (Andrew Carol)
very famous examples for public-key systems are:
· RSA:
The RSA is probably one of the most popular public-key cryptosystems. With the help of RSA, messages can be encrypted, but also digital signatures are provided.
The mathematics behind are supposedly quite easy to understand (see:
· PGP:
PGP is a public key encryption program. Most of all it is used for e-mail encryption.
It is supposed to be quite safe - until now.
· PGPi is simply the international variation of PGP.
for further information about the RSA and other key-systems visit the RSA homepage:
or:
All of those tools, like hash functions, too, can help to enhance security and prevent crime.
They can theoretically, but sometimes they do not, as the example of the published credit card key of France in March 2000 showed.
For more information see:
Still, cryptography can help privacy.
On the other hand cryptography is only one element to assure safe transport of data. It is especially the persons using it who have to pay attention. A key that is told to others or a lost cryptographic key are the end of secrecy.
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The World Intellectual Property Organization is one of the specialized agencies of the United Nations (UN), which was designed to promote the worldwide protection of both industrial property (inventions, trademarks, and designs) and copyrighted materials (literary, musical, photographic, and other artistic works). It was established by a convention signed in Stockholm in 1967 and came into force in 1970. The aims of WIPO are threefold. Through international cooperation, WIPO promotes the protection of intellectual property. Secondly, the organization supervises administrative cooperation between the Paris, Berne, and other intellectual unions regarding agreements on trademarks, patents, and the protection of artistic and literary work and thirdly through its registration activities the WIPO provides direct services to applicants for, or owners of, industrial property rights.
A mark (trademark or service mark) is "... a sign, or a combination of signs, capable of distinguishing the goods or services of one undertaking from those of other undertakings. The sign may particularly consist of one or more distinctive words, letters, numbers, drawings or pictures, emblems, colors or combinations of colors, or may be three-dimensional..." (
Intellectual property, very generally, relates to the output that result from intellectual activity in the industrial, scientific, literary and artistic fields. Traditionally intellectual property is divided into two branches: 1) industrial property (
The largest media and entertainment conglomerate in the world. The corporation resulted from the merger of the publisher Time Inc. and the media conglomerate Warner Communications Inc. in 1989. It acquired the Turner Broadcasting System, Inc. (TBS) in 1996. Time Warner Inc.'s products encompass magazines, hardcover books, comic books, recorded music, motion pictures, and broadcast and cable television programming and distribution. The company's headquarters are in New York City. In January 2000 Time Warner merged with AOL (America Online), which owns several online-services like Compuserve, Netscape and Netcenter in a US$ 243,3 billion deal.
Device used by the German military command to encode strategic messages before and during World War II. The Enigma code was broken by a British intelligence system known as Ultra.
The firm began in Germany in 1835, when Carl Bertelsmann founded a religious print shop and publishing establishment in the Westphalian town of Gütersloh. The house remained family-owned and grew steadily for the next century, gradually adding literature, popular fiction, and theology to its title list. Bertelsmann was shut down by the Nazis in 1943, and its physical plant was virtually destroyed by Allied bombing in 1945. The quick growth of the Bertelsmann empire after World War II was fueled by the establishment of global networks of book clubs (from 1950) and music circles (1958). By 1998 Bertelsmann AG comprised more than 300 companies concentrated on various aspects of media. During fiscal year 1997-98, Bertelsmann earned more than US$15 billion in revenue and employed 58.000 people, of whom 24.000 worked in Germany.
Blowfish is a symmetric key block cipher that can vary its length.
The idea behind is a simple design to make the system faster than others.
Royalties refer to the payment made to the owners of certain types of rights by those who are permitted by the owners to exercise the rights. The