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.
Johann Gutenberg (1398-1468), inventor of the printing press. The printing press was invented in 1448 by German goldsmith Johann Gutenberg. Because it allowed books to be mass-produced and made available to the general population, the invention changed the course of history in many ways. Gutenberg was a goldsmith, metallurgist and stone cutter living in Germany.