section_path: Life and career/Printing press
section_name: Printing press
paragraph_text: Printing press
  
  "What was written to me about that marvelous man seen at Frankfurt entirely true. I have not seen complete bibles but only a number of quires of various books. The script is extremely neat and legible, not at all difficult to follow would be able to read it without effort, and indeed without glasses"
  
  Future pope Pius II in a letter to Cardinal Carvajal, March 1455
  
  Around 1439, Gutenberg was involved in a financial misadventure making polished metal mirrors (which were believed to capture holy light from religious relics) for sale to pilgrims to Aachen: in 1439 the city was planning to exhibit its collection of relics from Emperor Charlemagne but the event was delayed by one year due to a severe flood and the capital already spent could not be repaid.
  
  Until at least 1444 Gutenberg lived in Strasbourg, most likely in the St. Arbogast parish. It was in Strasbourg in 1440 that he is said to have perfected and unveiled the secret of printing based on his research, mysteriously entitled Aventur und Kunst (enterprise and art). It is not clear what work he was engaged in, or whether some early trials with printing from movable type were conducted there. After this, there is a gap of four years in the record. In 1448, he was back in Mainz, where he took out a loan from his brother-in-law Arnold Gelthus, possibly for a printing press or related paraphernalia. By this date, Gutenberg may have been familiar with intaglio printing; it is claimed that he had worked on copper engravings with an artist known as the Master of Playing Cards.
  
  By 1450, the press was in operation, and a German poem had been printed, possibly the first item to be printed there. Gutenberg was able to convince the wealthy moneylender Johann Fust for a loan of 800 guilders. Peter Schöffer, who became Fust's son-in-law, also joined the enterprise. Schöffer had worked as a scribe in Paris and is believed to have designed some of the first typefaces.
  
  Gutenberg's workshop was set up at Humbrechthof, a property belonging to a distant relative. It is not clear when Gutenberg conceived the Bible project, but for this, he borrowed another 800 guilders from Fust, and work commenced in 1452. At the same time, the press was also printing other, more lucrative texts (possibly Latin grammars). There is also some speculation that there were two presses: one for the pedestrian texts and one for the Bible. One of the profit-making enterprises of the new press was the printing of thousands of indulgences for the church, documented from 1454 to 1455.
  
  In 1455, Gutenberg completed his 42-line Bible, known as the Gutenberg Bible. About 180 copies were printed, three quarters on paper, and the rest on vellum.