⚠️28 February 1991 The Serbian Autonomous Oblast of Krajina (SAO Krajina) is officially proclaimed. Its authorities announce that it would secede from Croatia if it try to gain for independence from Yugoslavia.

⚠️January 1991 Yugoslav TV broadcasts secret tapes made in October that allegedly show Croatian Defence Minister Martin Špegelj organising illegal arms deals. The tapes suggest that Croatia is preparing for war amid rising tensions with Belgrade.

⚠️25 January 1991 The Macedonian Parliament proclaims its independence with the Declaration on the Sovereignty of the Socialist Republic of Macedonia.

⚠️7 January 1991 A group of political leaders of local Serbs from eastern regions of Croatia decided to create a regional political body, the Serbian National Council of Slavonia, Baranja and Western Syrmia.

⚠️31 December 1990 The Croatian Constitutional Court declares that the Serbian Krajina does not exist in the legal sense.

Slovenian independence referendum ⚠️26 December 1990 The results of the referendum are officially announced. 95% of the vote is in favour of independence.

Slovenian independence referendum ⚠️23 December 1990 A referendum on independence is held in Slovenia. The question is put to the voters: Should the Republic of Slovenia become an independent and sovereign state?

⚠️22 December 1990 The Croatian Parliament adopts a new constitution, known as the "Christmas Constitution", marking a decisive step towards Croatia's independence from Yugoslavia. This constitution redefined the legal and political framework of the newly sovereign state.

Log Revolution ⚠️21 December 1990 The Serb-majority municipalities of Knin, Benkovac, Vojnić, Obrovac, Gračac, Dvor and Kostajnica adopt the Statute of the Serb Autonomous Region of Krajina.

First multi-party elections ⚠️9 December 1990 In Montenegro's elections, the League of Communists, renamed as the Democratic Party of Socialists (DPS), wins a majority of seats in the parliament. Its leader, Momir Bulatović, advocates for a continued federation with Serbia.

First multi-party elections ⚠️2 December 1990 The second round confirms the dominance of the nationalist parties in Bosnia. The Croatian HDZ and the Serb Democratic Party (SDS), representing the Croatian and Serbian communities, respectively, also perform strongly.

First multi-party elections ⚠️25 November 1990 Macedonia's second round of elections ends in a hung parliament. The VMRO-DPMNE emerges as the largest party but must form a coalition to govern.

First multi-party elections ⚠️18 November 1990 The results of the first round of elections in Bosnia and Herzegovina reveal a deep ethnic divide, with nationalist parties winning the majority of seats.

First multi-party elections ⚠️11 November 1990 The nationalist VMRO-DPMNE party wins the most seats in the first round of Macedonia's multi-party elections, but falls short of an outright majority. The election reflects rising nationalist sentiment amid growing instability in Yugoslavia.

⚠️1 October 1990 The Serbian National Council in Croatia formally proclaims the creation of Serbian political autonomy in Croatia, within Yugoslavia.

⚠️28 September 1990 The new Serbian Constitution is promulgated. The autonomy of Vojvodina and Kosovo is revoked, but their members in the Presidency of Yugoslavia retain their positions. The word "socialist" is removed from the name of the Republic of Serbia.

⚠️7 September 1990 The Kosovo Constitution is promulgated by the Albanian members of the dissolved Kosovo Assembly. Serbian President Slobodan Milošević responds by ordering the arrest of the deputies who took part in the session.

Log Revolution ⚠️7 September 1990 The Croatian Interior Minister, Josip Boljkovac, issued an ultimatum to the Krajina rebels to stop all actions against the Croatian constitution by noon on 12 September.

⚠️18 August 1990 The Croatian Democratic Union party (HDZ) is founded in Bosnia and Herzegovina.

Log Revolution ⚠️17 August 1990 The Log Revolution began in parts of Croatia with a large ethnic Serb population. The rebellion is against the separatist policies of the Croatian authorities.

⚠️5 August 1990 The Serb Democratic Party (SDS) is founded in Bosnia and Herzegovina.

⚠️25 July 1990 In Srb, in a Croatian zone with a large Serb minority, a Serb Assembly is formed and declares "sovereignty and autonomy of the Serb people in Croatia". This move was a response to threats by the new Croatian government against the Serb minority.

⚠️20 July 1990 The Serbian parliament amends its electoral laws to allow the first multi-party elections.

⚠️5 July 1990 The Serbian Assembly dissolves the Kosovo Assembly. Serbia also dissolves the Provincial Executive Council and assumes full and direct control of the province.

⚠️2 July 1990 114 ethnic Albanian delegates of the 180-member Kosovo Assembly gather outside the closed building and declare Kosovo an independent republic within Yugoslavia.

⚠️1 July 1990 The Slovenian parliament votes to declare independence (but independence is not proclaimed).

⚠️1-2 July 1990 A constitutional referendum is held in Serbia, in which voters decide on approving a new constitution. With a voter turnout of 78%, the new constitution is approved by 97% of voters.

⚠️8 June 1990 The Yugoslav Army (JNA) creates new brigades in the regions of Zagreb, Knin, Banja Luka and Herzegovina.

⚠️26 May 1990 The Party of Democratic Action (SDA) is founded in Bosnia and Herzegovina.

14th Congress LCY ⚠️26 May 1990 The congress reconvenes without the Slovenian and Croatian delegations. The session ends with the election of a provisional leadership, which took over some of the powers of the Presidency and the Central Committee.

⚠️14 May 1990 Following nationalist victories in the first multi-party elections in Croatia and Slovenia, the Yugoslav Army (JNA) orders the disarmament of the territorial defence forces in these republics.

⚠️13 May 1990 The match between Croatia's Dinamo Zagreb and Serbia's Red Star Belgrade at the Maksimir Stadium is marred by violence.

First multi-party elections ⚠️6 May 1990 The second round cemented the HDZ's dominance. Tuđman, a former general and historian, becomes the face of Croatian nationalism.

First multi-party elections ⚠️22 April 1990 Democratic Opposition of Slovenia (DEMOS) wins a clear majority in the second round of the Slovenian elections. However, the reformist communist Milan Kučan is elected president.

First multi-party elections ⚠️8 April 1990 Slovenia holds its first multi-party elections since the Second World War. The elections mark a crucial step towards independence, ending decades of one-party rule by the League of Communists.

⚠️23 March 1990 The Democratic Opposition of Slovenia (DEMOS) publishes a proposal for an alternative Slovenian constitution. The proposal clearly envisages an independent state.

⚠️17 March 1990 An assassination attempt is made on Croatian nationalist leader Franjo Tuđman at an election rally in Benkovac.

⚠️4 March 1990 A protest of 50,000 Serbs from Croatia and Serbia takes place on Petrova Gora "against Franjo Tuđman and the Ustaše", demanding the "territorial integrity of Yugoslavia".

⚠️17 February 1990 The Serb Democratic Party (SDS) is founded in Knin, Croatia.

⚠️14 February 1990 The Croatian parliament passes amendments to the Croatian constitution allowing multi-party elections.

⚠️3 February 1990 The Democratic Party (DS) is founded in Serbia.

⚠️25 January 1990 More Albanian protests take place in Kosovo. A crowd of 40,000 people is dispersed with water cannons and tear gas.

14th Congress LCY ⚠️22 January 1990 After two days of heated debates, the Slovenian delegation leaves the congress to the ironic applause of the Serbian delegation.

14th Congress LCY ⚠️21 January 1990 Serbian delegates push for a "one man, one vote" policy, advocating a centralised Yugoslavia. In contrast, the Slovenian delegation argues for a confederation, giving more power to the republics.

14th Congress LCY ⚠️20 January 1990 The League of Communists of Yugoslavia meets in Belgrade. It's purpose is to deal with the deepening crisis in Yugoslavia, but it quickly reveals the deep divisions between the republics and the desire for independence in Slovenia and Croatia.

⚠️23 December 1989 The Democratic League of Kosovo (LDK) party is founded.

The Anti-bureaucratic Revolution ⚠️1 December 1989 A planned "rally of truth" in Ljubljana is thwarted by Slovenian and Croatian police. Fewer than 100 people turn up to protest outside the Slovenian Assembly. Local police disperse the crowd.

⚠️27 November 1989 The Democratic Opposition of Slovenia (DEMOS) is formed as a unified platform of all major anti-communist political parties in Slovenia.

⚠️29 September 1989 Demonstrations are held in Kosovo, Montenegro, Serbia and Vojvodina against constitutional changes in Slovenia.

⚠️27 September 1989 Slovenia amends its constitution, allowing for secession and rejecting federal control over its economy and defense. This bold move sets the stage for Slovenia's push for independence, leading to the eventual breakup of Yugoslavia.