Laurens Janszoon Coster (ca. 1370, Haarlem, the Netherlands – ca. 1440), or Laurens Jansz Koster, is the name of an inventor of a printing press from Haarlem. Since the late 1890s, Haarlem has been willing to concede that perhaps Mainz printed earlier, in the person of Johann Gutenberg.
Read more about Laurens Janszoon Coster: Biography, Junius Story, Story By Ulrich Zell, Earliest Known Haarlem Printer, 300 Year Anniversary, 400 Year Anniversary, Joh. Enschedé