Gutenberg's Printing Press

Johannes Gutenberg's printing press was an amazing invention that completely changed the print-making industry and changed the world. Before Gutenberg's invention, all books had to be written by hand. There were many monks who copied books by hand all day. Books were a scarce form of communication because they had to be manually copies.

Gutenberg's invention was actually a combination of many inventions around the world. The Chinese had already found the art of print making and Gutenberg just found a way to speed the print making. After the printing press's popularity grew, books could be printed in a fraction of the time and cost. Books became plentifully available and books, such as the Bible, were able to reach more people worldwide.

Sources: http://en.wikipedia.org/wiki/Johannes_Gutenberg and
http://www.ideafinder.com/history/inventors/gutenberg.htm