4) Rocky Mountain Spotted Fever: This disease is caused by a bacterium known as Rickettsia rickettsia. This disease is not transmitted directly from your pet to you, but rather by ticks that your dog may carry.
Home Johann Gutenberg Johann Gutenberg. Johann Gutenberg invented the printing press in the 1450's, and the first book to ever be printed was a Latin language Bible, printed in Mainz, Germany. Gutenberg's Bibles were surprisingly beautiful, as each leaf Gutenberg printed was later colorfully hand-illuminated.
The Book that Changed the World. The Gutenberg Bible was the first book printed in Western Europe using movable metal type, introducing text reproduction to the masses. Scholars often cite February 23, 1455 as the original publication date for the âGutenberg Bible,â the first mass-produced book in Europe.