when did the first printing press come out
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title: Printing press text: Printing press A printing press is a device for applying pressure to an inked surface resting upon a print medium (such as paper or cloth), thereby transferring the ink. It marked a dramatic improvement on earlier printing methods in which the cloth, paper or other medium was brushed or rubbed repeatedly to achieve the transfer of ink, and accelerated the process. Typically used for texts, the invention and global spread of the printing press was one of the most influential events in the second millennium. Johannes Gutenberg, a goldsmith by profession, developed, circa 1439, a printing system by adapting existing title: Printing press text: "The Times" in London in 1814, capable of 1,100 impressions per hour. The first edition so printed was on 28 November 1814. They went on to perfect the early model so that it could print on both sides of a sheet at once. This began the long process of making newspapers available to a mass audience (which in turn helped spread literacy), and from the 1820s changed the nature of book production, forcing a greater standardization in titles and other metadata. Their company Koenig & Bauer AG is still one of the world's largest manufacturers of printing presses today. The title: History of printing text: American colonies in 1638, but died on the voyage, so his widow, Elizabeth Harris Glover, established the printing house, which was run by Stephen Day and became The Cambridge Press. The Gutenberg press was much more efficient than manual copying. It remained largely unchanged in the eras of John Baskerville and Giambattista Bodoni, over 300 years later. By 1800, Lord Stanhope had constructed a press completely from cast iron, reducing the force required by 90% while doubling the size of the printed area. While Stanhope's "mechanical theory" had improved the efficiency of the press, it was only capable of 250 title: Printing press text: antiquity in Gutenberg's time and was used for a wide range of tasks. Introduced in the 1st century AD by the Romans, it was commonly employed in agricultural production for pressing wine grapes and (olive) oil fruit, both of which formed an integral part of the mediterranean and medieval diet. The device was also used from very early on in urban contexts as a cloth press for printing patterns. Gutenberg may have also been inspired by the paper presses which had spread through the German lands since the late 14th century and which worked on the same mechanical principles. Gutenberg title: History of printing text: an electronic machine. Between 1939 and 1944, Carlson was turned down by over 20 companies, including IBM and GE, neither of which believed there was a significant market for copiers. History of printing The history of printing starts as early as 3500 BCE, when the Persian and Mesopotamian civilizations used cylinder seals to certify documents written in clay. Other early forms include block seals, pottery imprints and cloth printing. Woodblock printing on paper originated in China around 200 CE. It led to the development of movable type in the eleventh century and the spread of book production in East Asia.