| People once used drums and smoke singals to send messages across sparsely inhabited valleys.Later, they wrote on a rock walls, then on papyrus. People invented paper, wrote letters, and sent them by foot, these inventions changed history and our lives forever. | |
| One of the life-changing inventions was the printing press.Johann Gutenberg created a printing pres with moveable metal type containing letters, numbers and symbols, and in 1454, printed mutipel copies of a letter.The invention of the printing press allowed millions of inexpenxive papeer copies to be made quickly and easily. gutenburg's press was the photocopy machine of the 15th century. Today, printing presses allow millions of books, newspapers, and magazines to be mass produce every day. |
| Paper printing created huge new industries. Newspapers have bilions of subscribers around the worl. Billions of books, magazines, advertisements, and printed materials are constanly begin reproduce. Millions of new jobs were created in this printed, paper-based
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