Primož Trubar or Primus Truber (1508 – 28 June 1586) was a Slovene Protestant Reformer of the Lutheran tradition, mostly known as the author of the first Slovene language printed book, the founder and the first superintendent of the Protestant Church of the Duchy of Carniola, and for consolidating the Slovenian language. Trubar introduced The Reformation in Slovenia, leading the Austrian Habsburgs to wage the Counter-Reformation, which a small Protestant community survived. Trubar is a key figure of Slovenian history and in many aspects a major historical personality.