The sources have not been unanimous as to the exact date when the first book was printed on a printing press - a device invented by Johannes Gutenberg in the middle of 15th century. However, by common consent, it is the 42-Line Bible in Latin which is considered his most important print. In the National Museum’s collection called Printing press – the memories, you can see objects like printing pins, galleys and process-blocks, which were used, alongside with other artefacts, for mechanical reproduction. On esbirky.cz, you can also get online access to Czech most widespread edition of Melantrich’s Bible from 16th century. With the invention of the printing press, large scale print reproduction had been made possible, changing thus the nature of the world of information for the mankind once and for all.