text: Outside Croatia's northernmost regions, Kajkavian is also spoken in Austrian Burgenland and a number of enclaves in Hungary along the Austrian and Croatian border and in Romania.
  Classification
  Historically, the classification of Kajkavian has been a subject of much debate regarding both the question of whether it ought to be considered a dialect or a language, as well as the question of what its relation is to neighboring vernaculars.
  Autonyms used throughout history by various Kajkavian writers have been manifold, ranging from Slavic (slavonski, slovenski, slovinski) to Croatian (horvatski) or Illyrian (illirski). The naming went through several phases, with the Slavic-based name initially being dominant. Over time, the name Croatian started gaining ground mainly during the 17th century, and by the beginning of the 18th century, it had supplanted the older name Slavic. The name also followed the same evolution in neighboring Slovene Prekmurje and some other border areas in what is now Slovenia, although there the name Slovene-Croatian (slovensko-horvatski) existed as well. The actual term Kajkavian (kajkavski), including as an adjective, was invented in the 19th century and is credited to Serbian philologist Đuro Daničić, while it was generally used and promoted in the 20th century works by Croatian writer Miroslav Krleža. The term is today accepted by its speakers in Croatia.