In 314, a civil war erupted between Licinius and Constantine, in which Constantine used the pretext that Licinius was harboring Senecio, whom Constantine accused of plotting to overthrow him. Constantine prevailed at the Battle of Cibalae in Pannonia.
The Republic of Ragusa establishes a landing station for vessels far from the city and harbour in which travellers suspected to have the plague must spend thirty days, to see whether they became ill and died or whether they remained healthy and could leave.
Tesla later wrote that he became interested in demonstrations of electricity by his physics professor. Tesla noted that these demonstrations of this "mysterious phenomena" made him want "to know more of this wonderful force". Tesla was able to perform integral calculus in his head, which prompted his teachers to believe that he was cheating.
In 1873, Tesla returned to Smiljan. Shortly after he arrived, he contracted cholera, was bedridden for nine months and was near death multiple times. Tesla's father, in a moment of despair, (who had originally wanted him to enter the priesthood) promised to send him to the best engineering school if he recovered from the illness.
In 1874, Tesla evaded conscription into the Austro-Hungarian Army in Smiljan by running away southeast of Lika to Tomingaj, near Gračac. There he explored the mountains wearing hunter's garb. Tesla said that this contact with nature made him stronger, both physically and mentally. He read many books while in Tomingaj and later said that Mark Twain's works had helped him to miraculously recover from his earlier illness.
Josip Broz was born on 7 May 1892 in Kumrovec, a village in the northern Croatian region of Hrvatsko Zagorje, which at that time was part of the Kingdom of Croatia-Slavonia within the Austro-Hungarian Empire.
After completing his apprenticeship in September 1910, Broz used his contacts to gain employment in Zagreb and at the age of 18 joined the Metal Workers' Union and participated in his first labour protest. He also joined the Social Democratic Party of Croatia and Slavonia.
Upon his return home, Broz was unable to gain employment as a metalworker in Kumrovec, so he and his wife moved briefly to Zagreb, where he worked as a waiter and took part in a waiter's strike. He also joined the Communist Party of Yugoslavia (CPY).
After the assassination of Milorad Drašković, the Yugoslav Minister of the Interior, by a young communist named Alija Alijagić on 2 August 1921, the CPY was declared illegal under the Yugoslav State Security Act of 1921.
After the arrest of the CPY leadership in January 1922, Stevo Sabić took over control of its operations. Sabić contacted Broz who agreed to work illegally for the party, distributing leaflets and agitating among factory workers. In the contest of ideas between those that wanted to pursue moderate policies and those that advocated violent revolution, Broz sided with the latter.
In March 1927, he wrote an article complaining about the exploitation of workers in the factory, and after speaking up for a worker he was promptly sacked. Identified by the CPY as worthy of promotion, he was appointed secretary of the Zagreb branch of the Metal Workers' Union, and soon after of the whole Croatian branch of the union.
After completing the full term of his sentence, he was released, only to be arrested outside the prison gates and taken to Ogulin to serve the four-month sentence he had avoided in 1927. He was finally released from prison on 16 March 1934, but even then he was subject to orders that required him to live in Kumrovec and report to the police daily.
Tito travelled several times between Paris and Zagreb organising the movement of volunteers and creating a separate Communist Party of Croatia. The new party was inaugurated at a conference at Samobor on the outskirts of Zagreb on 1–2 August 1937.
A tense atmosphere prevailed on May 13, 1990, when a football game was held at Zagreb in Maksimir Stadium between Zagreb's Dinamo team and Belgrade's Red Star. The game erupted into violence between the Croatian and Serbian fans and with the police.
On 14 May 1990, the weapons of the TO of Croatia, in Croat-majority regions, were taken away by the JNA, preventing the possibility of Croatia having its own weapons as was done in Slovenia. Borisav Jović, Serbia's representative in the Federal Presidency and a close ally of Slobodan Milošević, claimed that this action came at the behest of Serbia.
After the election of Tuđman (Croatian President) and the HDZ, a Serb Assembly was established in Srb, north of Knin, on 25 July 1990 as the political representation of the Serb people in Croatia. The Serb Assembly declared "sovereignty and autonomy of the Serb people in Croatia".
In August 1990, an unrecognized mono-ethnic referendum was held in regions with a substantial Serb population which would later become known as the Republic of Serbian Krajina (RSK) (bordering western Bosnia and Herzegovina) on the question of Serb "sovereignty and autonomy" in Croatia.
On 21 December 1990, the SAO Krajina (Serbian Autonomous Oblast of Krajina) was proclaimed by the municipalities of the regions of Northern Dalmatia and Lika, in south-western Croatia. Article 1 of the Statute of the SAO Krajina defined the SAO Krajina as "a form of territorial autonomy within the Republic of Croatia" in which the Constitution of the Republic of Croatia, state laws, and the Statute of the SAO Krajina were applied.
The Croatian military was in a much worse state than that of the Serbs. In the early stages of the war, lack of military units meant that the Croatian Police force would take the brunt of the fighting. The Croatian National Guard, the new Croatian military, was formed on 11 April 1991, and gradually developed into the Croatian Army by 1993.
On 19 May 1991, the Croatian authorities held a referendum on independence with the option of remaining in Yugoslavia as a looser union. Serb local authorities issued calls for a boycott, which were largely followed by Croatian Serbs. The referendum passed with 94% in favor.
On 25 June 1991, both Slovenia and Croatia declared independence, which led to a short armed conflict in Slovenia called the Ten-Day War, and an all-out war in Croatia in the Croatian War of Independence in areas with a substantial ethnic Serb population.
On the morning of 26 June, units of the Yugoslav People's Army's 13th Corps left their barracks in Rijeka, Croatia, to move towards Slovenia's borders with Italy.
In August 1991, the Battle of Vukovar began. The Battle of Vukovar was an 87-day siege of Vukovar in eastern Croatia by the Yugoslav People's Army (JNA), supported by various paramilitary forces from Serbia, between August and November 1991. Before the Croatian War of Independence the Baroque town was a prosperous, mixed community of Croats, Serbs and other ethnic groups. As Yugoslavia began to break up, Serbia's President Slobodan Milošević and Croatia's President Franjo Tuđman began pursuing nationalist politics. In 1990, an armed insurrection was started by Croatian Serb militias, supported by the Serbian government and paramilitary groups, who seized control of Serb-populated areas of Croatia. The JNA began to intervene in favour of the rebellion, and conflict broke out in the eastern Croatian region of Slavonia in May 1991. In August, the JNA launched a full-scale attack against Croatian-held territory in eastern Slavonia, including Vukovar.
In September 1991, Croatian National Guard (ZNG) organised armed incursions across the Croatian border into Bosnia. ZNG opened mortar fire on Bosanska Dubica on 13 September 1991, and raided Bosanski Brod on 15 September 1991.
On 20 September 1991, the JNA transferred troops to the front at Vukovar via the Višegrad region of northeastern Bosnia. In response, local Croats and Bosniaks set up barricades and machine-gun posts. They halted a column of 60 JNA tanks but were dispersed by force the following day. More than 1,000 people had to flee the area. This action, nearly seven months before the start of the Bosnian War, caused the first casualties of the Yugoslav Wars in Bosnia.
On October 5, President Tuđman made a speech in which he called upon the whole population to mobilize and defend against "Greater Serbian imperialism" pursued by the Serb-led JNA, Serbian paramilitary formations, and rebel Serb forces.
The next day, as a previously agreed three-month moratorium on implementation of the declaration of independence expired, the Croatian Parliament severed all remaining ties with Yugoslavia. 8 October is now celebrated as Independence Day in Croatia.
Croatian forces made further advances in the second half of December, including Operation Orkan 91 which was a military offensive undertaken by the Croatian Army (Hrvatska vojska – HV) against the Yugoslav People's Army (Jugoslovenska Narodna Armija – JNA) and SAO Western Slavonia Territorial Defense Forces in the Sava River valley, in the region of Western Slavonia during the Croatian War of Independence. The operation began on 29 October 1991 and ended on 3 January 1992 when a nationwide ceasefire was signed to implement the Vance plan. The offensive was aimed at recapturing the region, in conjunction with two other HV offensives launched against SAO Western Slavonia in the north of the region within days.
On 14 November, the Navy blockade of Dalmatian ports was challenged by civilian ships. The confrontation culminated in the Battle of the Dalmatian channels, when Croatian coastal and island based artillery damaged, sank, or captured a number of Yugoslav navy vessels, including Mukos PČ 176, later rechristened PB 62 Šolta.
On February 18, 1993, Croatian authorities signed the Daruvar Agreement with local Serb leaders in Western Slavonia. The aim of the secret agreement was normalizing life for local populations near the frontline. However, authorities in Knin learned of this and arrested the Serb leaders responsible.
The Croat-Bosniak war ended with the signing of a ceasefire agreement between the HVO Chief of Staff, general Ante Roso, and the ARBiH Chief of Staff, general Rasim Delić, on 23 February 1994 in Zagreb. The agreement went into effect on 25 February.
On November 23, after a NATO reconnaissance plane was illuminated by the radar of a surface-to-air missile (SAM) system, NATO planes attacked a SAM site near Dvor with AGM-88 HARM anti-radiation missiles.
From November 29 – December 24 in the Winter '94 operation near Dinara and Livno. These operations were undertaken to detract from the siege of the Bihać region and to approach the RSK capital of Knin from the north, isolating it on three sides.
On 4 August, Croatia started Operation Storm, with the aim of recapturing almost all of the occupied territory in Croatia, except for a comparatively small strip of land, located along the Danube, at a considerable distance from the bulk of the contested land. The offensive, involving 100,000 Croatian soldiers, was the largest single land battle fought in Europe since World War II. Operation Storm achieved its goals and was declared completed on 8 August.
Further combat was averted on 12 November when the Erdut Agreement was signed by the RSK acting defense minister Milan Milanović, on instructions received from Slobodan Milošević and Federal Republic of Yugoslavia officials.
As the UNTAES replaced the UNCRO mission, Prevlaka peninsula, previously under UNCRO control, was put under control of United Nations Mission of Observers in Prevlaka (UNMOP). The UNMOP was established by United Nations Security Council Resolution 1038 of 15 January 1996, and terminated on 15 December 2002.