Before 7th century:
Slavs begin settling the valleys of the Sava, Drava and Mura rivers, and under pressure from the Avars, reach the shores of the Black Sea, Friuli plains, the Danube, Adriatic Sea and Lake Balaton.
7th century:
Western Slavic tribes form an alliance with the Slavic Duchy of Carantania with its centre in present day Austrian Carinthia.
745:
Carantania becomes a part of the Frankish empire. The Slavs convert to Christianity and gradually lose their independence.
869 to 874:
Prince Kocelj briefly establishes an independent state of Slovenes in Lower Pannonia.
9th century:
Alongside the growing influence of Christianity the Slovenian language is increasingly used in religious services. The Freising Manuscripts, the oldest written records in the Slovenian language, originate from this period.
14th to 16th centuries:
The House of Habsburg extends its control over most of the Slovenian regions.
1551:
Protestant Primoz Trubar publishes "Katekizem" (The Catechism), the first book written in the Slovenian language.
1584:
Jurij Dalmatin translates the Bible into Slovenian. Adam Bohoric writes a Slovenian grammar book.
1848:
Slovenian intellectuals issue the first political program for a United Slovenia.
1918 - October:
Liberation of all Slovenians from the territory of the former Austro-Hungarian monarchy is declared, and in December the Kingdom of Serbs, Croats and Slovenes is formed.
1941- April 27th:
sees the formation of the OF (Liberation Front), an anti-Nazi coalition, which becomes the pillar of the partisan struggle against the German, Italian and Hungarian occupation after the capitulation of the Kingdom of Yugoslavia.
1945:
Fighting with the Germans in Carinthia and Styria ended on May 15th (Last battle of W.W.II).
1945:
The process of nationalisation begins, gradually bringing private business, industry and land ownership under state control.
1988 to 1990:
The military trial of three journalists and an army officer leads to calls for an independent Slovenia. Events following are known as the Slovene Spring, ending with the first parliamentary multiparty democratic election in the former state (April,1990).
20 January 1990:
The Slovenian delegation leaves the congress of the Yugoslav League of Communists for the last time.
23 December 1990:
88.5% of voters at the referendum cast their vote for an independent Slovenia.
25 June 1991:
The Republic of Slovenia officially declares its independence.
27 June 1991:
The Yugoslav Army attacks Slovenia.
7 July 1991:
By signing the Brioni Declaration the Yugoslav People's Army terminates its military involvement in Slovenia.
25 October 1991:
The last Yugoslav soldier leaves Slovenia.
23 December 1991:
The Slovene Constitution is adopted.
15 January 1992:
The European Union officially recognizes Slovenia.
6 December 1992:
The first elections are held in independent Slovenia.
27 September 1994:
Slovenia signs the accession declaration in Geneva for scicrporation in the General Agreement on Tariffs and Trade. Slovenia thus becomes a founding member of the World Trade Organization (23 December 1994).
10 June 1996:
Slovenia and the European Union sign an association agreement, granting Slovenia the status of associate membership and access to the structural dialogue.
From: http://scic.cec.eu.int/Main/enlargement/lan_pres/sloven_03.htm