This is a timeline of key events in the history of Slovenia, both of the Slovenes and the other ethnicities who once lived or do live on Slovene ethnic territory or in the geographical bounds of Slovenia.
The Adriatic Veneti, a people who spoke a centum language close to the Italic languages, are dwelling in northeastern Italy and parts of Slovenia. A well-developed Illyrian population exists as far north as the upper Sava valley in what is now Slovenia. Illyrian friezes discovered near the present-day Slovene city of Ljubljana depict ritual sacrifices, feasts, battles, sporting events, and other activities. The Adriatic Veneti are not to be confused with the Venedes, a people who once inhabited the Vistula region (see Veneti (disambiguation)).
Celtic peoples settle in the area of modern Slovenia. Their legacy is attested in geographic names, such as place names Bohinj, Tuhinj and river names Sava, Savinja and Drava.
7 - Pannonians, with the Dalmatians and other Illyrian tribes, revolt, and are overcome by Tiberius and Germanicus (15 BC-19), after a hard-fought campaign which lasted for two years.
9 - The Roman Empire finally conquers Pannonia (which includes the biggest part of present-day Slovenia). Roman legions stay in Poetovio (modern Ptuj).
Circa 290 - Noricum is divided under Roman Emperor Diocletian (245-313, reigned 284-305) into Noricum ripense (along the Danube) and mediterranean (the southern mountainous district).
Circa 550 - The first wave of Slavs, coming from the north (Moravia) arrives to the modern Slovene ethnic territory.
568 - Langobards leave the territories of modern Slovenia and the borderlands of Pannonia, moving into Italy.
582/592 - The second and most important wave of Slavic settlement takes place. Slavs and Avars settle in Eastern Alps (Julian Alps, Karavanke), eventually occupying an area more than twice the size of today's Slovenia. Slavic settlement is proven by the decline of dioceses in the Eastern Alpine region in second half of the 6th century, as well as in the change of population, the material culture and the linguistic identity of the area.
Originally, it was believed that after the departure of Langobards, Slavs entered into a largely unpopulated territory. However, recent advances in history and archaeology show that the remains of the romanised aboriginal population played a prominent part in the subsequent ethnogenesis of Slovenes. They also left traces in place names containing the element Lah or Vlah (see Vlachs).
The Eastern Alpine region becomes known as the region of Slavs. Paul the Deacon, the medieval Lombard chronicler, recounts that in 595 Tassilo I, king of the Bavarians, attacked Sclaborum provincia (the region of Slavs).
Slavs of the Eastern Alps and Pannonia were originally subject to the rule of Avarkhagans. In 610, Avars attempt to invade Italy. After their power is weakened, a relatively independent March of Slavs (Marca Vinedorum) appears.
623 - Uprising of Slavs led by Samo1 against Avars. Samo's Tribal Union is formed.
658 - Samo's death. The Tribal Union declines, but a part of the March of Slavs maintains independence and becomes known in historical sources under the name of Karantania. The center of Karantania was Zollfeld (SloveneGosposvetsko polje), north of modern Klagenfurt (SloveneCelovec).
745 - Karantania loses its independence and becomes a margraviate and tantamount part of the semifeudal Frankishempire later under the rule of king Charlemagne (742-814, reigned 771-814) due to pressing danger of Avar tribes from the east.
In late 8th century, the Slavic duchy of Carniola is formed south of the Karavanke mountains. The only known duke, Vojnomir, is historically attested in 795.
871 - The earliest written record of the ancient Karantanian ritual of installing dukes "Conversio Bagoariorum et Carantanorum", where is written: ... illi eum ducem fecerunt... (they were made dukes).
887 - Arnulf of Carinthia (850-899) a grandson of Louis the German assumes his title of King of the East Franks and becomes the first Duke of Carinthia.
894/895 - Great Moravia probably loses a part of its territory - present-day Western Hungary- to Arnulf of Carinthia, who failed to conquer Great Moravia in 892, 893, 894/895 and 899.
895 - Accord between Arnulf of Carinthia and the BohemianDukeBorivoj (reigned 870-895), Bohemia is freed from the danger of invasion.
1274 - Bohemian king Ottokar II. (reigned as a king 1253-1278) a candidate for the German throne refuses to appear or to restore the provinces of Austria, Styria, Carinthia and Carniola which he had seized. The way he got named provinces they believed was contentious.
1414 - The Habsburg Duke Ernest the Iron (1377-1424) thrones according to the ancient Karantanian ritual of installing dukes on the Duke's Stone and he addresses again as an archduke.
1451April 11 - Celje acquires town rights by orders from Celje count Frederic II (Friderik II).
1912 - The Preporod (Rebirth), a juvenile movement is established. Many members have political connections with the pro-Serb organization Young Bosnia (Mlada Bosna).
1912-1915 - A hydroelectric station in Završnica (2500 kW) is being built.
1913April 12 - Ivan Cankar in Ljubljana gives a speech Slovenes and Yugoslavs for the socialist society Vzajemnost (Mutuality) about Slovenes to unite politically but not culturally with other South Slavs and Yugoslavism.
1913 - Celje is electrified. Westen's dishes factory uses electricity in industry.
1914 - The railway on the route Novo mesto - Karlovac begins to run.
1915-1918 - The Soča River front. In 11 Soča offensives Italians captured just Gorizia (Gorica) and a few frontier sites. On these battlefields many Slovenes in Austro-Hungarian army died (for example at Doberdob).
1917May 30 - May Declaration of Slovene, Croatian and Serb representatives in the Vienna parliament signed by Anton Korošec about arrangement of a unified common state of Slovenes, Croats, and Serbs living within the Habsburg monarchy.
1917July 20 - The Corfu Declaration is signed between the Yugoslav committee (Jugoslovanski odbor) and the Serb government and becomes the basis for the formation of the Yugoslav state.
1917October 24 - November 9 - The Battle of Kobarid between Austrian forces, reinforced by German units and the Italian army. The Italian army withdraws to the river Piave and only the military assistance of the British and French saves them from a total break.
1918October 6 - National Council of Slovenes, Croats, and Serbs is established in Zagreb. It becomes the political representative body of South Slavs in Austria-Hungary.
1918October 29 - National Council of Slovenes, Croats, and Serbs breaks off all relations with Austria-Hungary and proclaims a short-lived State of Slovenes, Croats and Serbs. Slovenia joins a new state with an independent State authority. The state is not recognized internationally.
1919September 10 - The Treaty of Saint-Germain with republic of Austria. It confirms the break of Austria-Hungary. Its territory comes down to newly formed countries Austria, Hungary, Czechoslovakia, Poland, Romania, and the Kingdom of Serbs, Croats and Slovenes. South Tirol with mainly German population falls to Italy.
1920November 12 - The Treaty of Rapallo between Italy and the Kingdom of Serbs, Croats and Slovenes, where Slovenia loses almost the whole province of Primorska, which is incorporated back again after the 2nd World War. Italy also gets the whole Istria together with the Trieste region (Tržaško).
1920 - The "Kulturbund" - a cultural and educational organization of German national minority is established. Later becomes the nazi organization, which operates in Yugoslavia as a fifth column.
1921June 28 - St. Vitus Day Constitution (Vidovdanska ustava) is adopted. It legalizes a monarchal regulation and centralism in a new state and also the supremacy of the court and the Serb politics linked with it.
1921 July - An allied treaty for insurance of a situation in East Europe, attained in the Paris Peace Conference, is made by Romania and the Kingdom of Serbs, Croats and Slovenes. This alliance supplements the security agreement between Czechoslovakia and the Kingdom of Serbs, Croats and Slovenes and gets the name "Small entente".
1922 - Julian March (Julijska krajina) is incorporated to Italy.
1923 March - Prefect of Julian March interdicts Slovene and Croatian language at the administration.
1925October 15 - Italian king issues a decree, which interdicts Slovene and Croatian language also at courts of justice.
1927 - Founding of the TIGR at Goriško, Slovene anti-fascist organisation, first such European organization and a secret youth organization Borba (The fight) at the Trieste region.
1929January 6 - The king Alexander I. with a coup d'état dissolves the parliament and establishes the January 6th Dictatorship. He abolishes the St. Vitus Day constitution, freedom of the press and the pooling rights.
1929October 3 - The king Alexander I renames the Kingdom of Serbs, Croats and Slovenes as the Kingdom of Yugoslavia. All political parties are prohibited.
1935 - Milan Stojadinović becomes prime minister. His government begins to drop Yugoslavia's traditional leaning toward France and starts to connect economically and politically with Germany and Italy.
1937 - The National Academy of Sciences and Arts is established in Ljubljana.
1938 - Some members of TIGR plan an attempt on Mussolini's life, when he visits Kobarid.
1938 December - Dragiša Cvetković becomes prime minister . He signs an agreement with the leader of Croatian opposition Vladko Maček allowing for the foundation of the Banovina of Croatia as the sole autonomous political and territorial unit in the Kingdom of Yugoslavia. This agreement does not solve the national problem since it just distributes the authority among Serbs and Croats.
1941April 6 - German, Italian and Hungarian occupying forces occupy Slovenia and divide it into three parts. One of the darkest times of the Slovene history begins.
1941April 11 - German army occupies the Zasavje districts, where important pits, heavy industry and traffic crossroads lie.
1941April 19 - A Nazi politician and SS chief leader Heinrich Himmler visits Celje and among other he inspects the prison of the Stari pisker ("Old pot").
1941April 26 - An anti-fascist organization, the Liberation Front of Slovene nation (Osvobodilna fronta Slovenskega ljudstva) (OF) is established in Ljubljana. It is active on all Slovene ethnical territory, as well in Carinthia, Primorska region in the Venetian province and Slovene Raba region (Slovene Slovensko Porabje, HungarianSzlovén-vidék or Rába-vidék).
1941May 8 - A decision about the organization of the OF in the Zasavje districts in Trbovlje, Zagorje and Hrastnik is adopted.
1941August 1 - The first Slovene partisan unit in the Zasavje distrincts, the Revirje company (Revirska četa) is established at the Čemšeniška Alpine meadow. 70 fighters were counted.
1941December 12 - A battle between German policemen and Slovene partisans near the village of Rovte.
1943September 16 - The supreme plenum of OF proclaims the association of Slovene maritime province (Slovensko primorje) to Slovenia.File:Si-map.pngThe territory of present day Slovenia
1945May 2 - Troops of Yugoslav 4th Army together with Slovene 9th Corpus NOV, New Zealand units and Italian resistance liberate Trieste.
1945May 5 - First postwar Slovene national government is named and elected by the SNOS (Slovene National Liberation Council) at the Bratina Hall in Ajdovščina.
1945May 8 - British 8th Army together with Slovene partisan troops and motorized detachment of Yugoslav 4th Army arrives to Carinthia and Klagenfurt.
1945May 9 - General Alexander Löhr Commander of German Army Group E near Topolšica, Slovenia signs unconditional capitulation of German occupation troops. World War II in Slovenia ends.
1945May 25 - Forced repatriation of Slovene military and civilians from Viktring, Austria to various postwar execution sites including Kočevski Rog and Teharje camp.
1945June 12 - Trieste stops being under the administration of Yugoslav army.
1947February 10 - 21 countries sign the Paris peace conference with Italy.
1954 - Free Territory of Trieste expires after the London Memorandum is signed between the US, Great Britain and Yugoslavia. Trieste becomes Italian. Slovenia gets the north of Istria.
1991June 27 - Slovenia removes Yugoslav border signs and marks its own. Yugoslav People's Army (JNA) sends 2,000 soldiers from the baracks across Slovenia to occupy the border and the Ten Day War begins.
1991June 27-July 6 - Ten Day War. JNA takes over border posts, but most of the JNA soldiers are blocked in their barracks, where they are denied water and electricity.
1991July 6 - Ten Day War ends. JNA is set to leave Slovenia in 3 months. Fewer than 100 people died in the clashes, mostly JNA soldiers (57), but important precedent is set for the wars in the rest of SFR Yugoslavia
1992December 6 - 1st presidential elections. Milan Kučan becomes the president for the period 1992-1997 with 795,012 votes (63,93 %) from 8 candidates.
1997November 23 - 2nd presidential elections. Milan Kučan again becomes the president for the period 1997-2002 with 595,877 votes (55.57%) from 8 candidates.
2002November 10 - 3rd presidential elections for the period 2002-2007. There are 9 candidates.
2002November 21 - During the Prague (Czech Republic) NATO summit Slovenia is invited to start talks in order to join the Alliance together with six countries Estonia, Latvia, Lithuania, Slovakia, Bulgaria and Romania.
2002December 1 - 2nd round of the 3rd presidential elections. Janez Drnovšek becomes the 2nd president for the period 2003-2008 from the victory over another candidate Barbara Brezigar.
2003March 23 - referendums for joining Slovenia to the EU and NATO. Both are positive.
2004March 29 - Slovenia together with six former Warsaw Pact countries of Bulgaria, Estonia, Latvia, Lithuania, Romania and Slovakia joins NATO.
2004May 1 - Slovenia enters the European Union along with Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland and Slovakia.
