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Thursday, February 23, 2012

Time line of inventions..Printing Press..1440 AD.From Wikipaedia.

The 15th century invention of the printing press with movable type by the GermanJohannes Gutenberg is widely regarded as the most influential event of the modern era.[1]


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. Typically used for texts, the invention and spread of the printing press are widely regarded as the most influential events in the second millennium AD,[1] revolutionizing the way people conceive and describe the world they live in, and ushering in the period of modernity.[2]
The printing press was invented in the Holy Roman Empire by the German Johannes Gutenberg in around 1440, based on existing screw presses. Gutenberg, agoldsmith by profession, developed a complete printing system, which perfected the printing process through all of its stages by adapting existing technologies to printing purposes, as well as making groundbreaking inventions of his own. His newly devised hand mould made for the first time possible the precise and rapid creation of metal movable type in large quantities, a key element in the profitability of the whole printing enterprise.

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