In the following weeks, one witness described how difficult it was to "get away from faces of innocent victims who were killed. Their pictures are everywhere, on phone booths, street lights, walls of subway stations." The World Trade Center is currently in the process of being rebuilt.
Invention of the Printing Press (1440)
Sometime around 1440, German goldsmith Johannes Gutenberg invented the printing press. The printing press was a device that transferred ink to a print medium. The global spread of Gutenberg's press allowed for the mass circulation of information and ideas, known as the Printing Revolution.
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