Country history · Europe

History of Slovenia

27 recorded states lay in what is now Slovenia, from Histri (600 BCE). 5 of them have a full profile, and 9 outside powers ruled here.

ProfileState (capital or seat)2 without a known seat not shownOpen in the atlas →

Profiles

Empires that ruled here

Timeline

7th century BCE

  1. Histri600 BCE – 177 BCE · kingdom
  2. Iapydes600 BCE – 34 BCE · tribal confederation

3rd century BCE

  1. Kingdom of Noricum200 BCE – 16 BCE · kingdom

5th century

  1. Ostrogothic Kingdom493 CE – 553 CE · kingdom

6th century

  1. Duchy of Friuli568 CE – 776 CE · duchy

7th century

  1. Carantania658 CE – 828 CE · principality
  2. Republic of Venice697 CE – 1797 CE · profile

8th century

  1. March of Friuli776 CE – 952 CE · margraviate

9th century

  1. Duchy of Pannonian Croatia800 CE – 925 CE · duchy
  2. Balaton Principality839 CE – 876 CE · principality

10th century

  1. Margraviate of Styria970 CE – 1180 CE · margraviate
  2. Duchy of Carinthia976 CE – 1918 CE · duchy

11th century

  1. Duchy of Carniola1040 CE – 1918 CE · duchy
  2. Patriarchate of Aquileia1077 CE – 1420 CE · prince bishopric
  3. County of Gorizia1090 CE – 1918 CE · county

12th century

  1. Duchy of Styria1180 CE – 1918 CE · duchy

14th century

  1. Inner Austria1379 CE – 1619 CE · duchy

16th century

  1. Habsburg Monarchy1526 CE – 1804 CE · profile

19th century

  1. Austrian Empire1804 CE – 1867 CE · profile
  2. Kingdom of Italy (Napoleonic)1805 CE – 1814 CE · kingdom
  3. Illyrian Provinces1809 CE – 1816 CE · colony
  4. German Confederation1815 CE – 1866 CE · profile
  5. Kingdom of Illyria1816 CE – 1849 CE · kingdom

20th century

  1. Kingdom of Yugoslavia1918 CE – 1941 CE · profile
  2. State of Slovenes, Croats and Serbs1918 CE – 1918 CE · republic
  3. Republic of Prekmurje1919 CE – 1919 CE · republic
  4. Socialist Federal Republic of Yugoslavia1945 CE – 1992 CE · republic

In the encyclopedia

Shared histories

States that also lay in other present-day countries:

States of Germany and Central Europe → States of Balkans and Hungary → All country histories →

Cite this page
APA
The Epoch Institute. (2026). History of Slovenia. In The Epoch Institute States Register. https://the-epoch-institute.org/countries/slovenia
MLA
“History of Slovenia.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/countries/slovenia. Accessed .
Chicago
The Epoch Institute. “History of Slovenia.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/countries/slovenia.
Harvard
The Epoch Institute (2026) ‘History of Slovenia’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/countries/slovenia (Accessed: ).