Ottoman conquest of Bosnia and Herzegovina in the context of "Kingdom of Bosnia"

Serbs of Bosnia and Herzegovina or Bosnian Serbs, are one of the three constituent peoples of Bosnia and Herzegovina. According to data from the 2013 census, the population of ethnic Serbs in Bosnia and Herzegovina was 1,086,733, constituting 30.8% of the total population; they are the second-largest ethnic group in the country (after Bosniaks) and live predominantly in the political-territorial entity of Republika Srpska.

Serbs have a long history of inhabiting the present-day territory of Bosnia and Herzegovina as well as long history of statehood in that territory. Slavs settled the Balkans in the 6th century and the Serbs were one of the main tribes who settled the peninsula including parts of modern-day Bosnia and Herzegovina. Parts of Bosnia were ruled by the Serbian prince Časlav in the 10th century while the southeastern and eastern parts became integrated into the Serbian medieval state under the Nemanjić dynasty by the 13th-14th centuries. After the Ottoman conquest of Bosnia and Herzegovina, the majority of the Orthodox Christian population in the region retained their Serbian ethnic and religious identity under the restored Serbian Patriarchate of Peć, while many landowners converted to Islam. Throughout the period of Ottoman rule, the Serbs of Bosnia and Herzegovina, formed the core of several major uprisings against Ottoman rule. In 1878, following the Congress of Berlin, Austria-Hungary occupied Bosnia and Herzegovina, facing resistance from the Serb population, which increasingly aspired to unification with the Kingdom of Serbia, culminating in growing tensions that contributed to the assassination of Archduke Franz Ferdinand in Sarajevo, which triggered the World War I.

Islam is the most popular religion in Bosnia and Herzegovina. It was introduced to the local population in the 15th and 16th centuries as a result of the Ottoman conquest of Bosnia and Herzegovina.

Muslims make the largest religious community in Bosnia and Herzegovina at around 51% of the population.

The history of Bosnia and Herzegovina in the Middle Ages refers to the time period between the Roman era and the 15th-century Ottoman conquest. The Early Middle Ages in the Western Balkans saw the region reconquered from barbarians (Ostrogoths) by the Byzantine Emperor Justinian I (r. 527–565), followed by raids and migrations carried out by Slavic peoples in the 6th and 7th centuries. The first mention of a distinct Bosnian region comes from the 10th-century Byzantine text De Administrando Imperio. By the late 9th and early 10th century, Latin priests had Christianized much of Bosnia, with some areas remaining unconverted. In the High Middle Ages, Bosnia experienced economic stability and peace under the Ban Kulin who ruled over Banate of Bosnia from 1180 to 1204 and strengthened its ties with the Republic of Ragusa and with Venice. The Kingdom of Bosnia emerged in the Late Middle Ages (1377). The kingdom faced internal and external conflicts, eventually falling under Ottoman rule in the late 15th and early 16th centuries.

Stjepan Vukčić Kosača (1404–1466) was a powerful Bosnian nobleman who was politically active from 1435 to 1466; the last three decades of Bosnian medieval history. During this period, three kings acceded to the Bosnian throne: Tvrtko II, Thomas (Tomaš), Stephen Tomašević (Stjepan Tomašević) and anti-king Radivoj—the older brother of King Thomas—before the country was conquered by the Ottomans.

Stjepan, a son of the Knez of Drina, Vukac Hranić, and Katarina, whose ancestry is unknown, was probably born in 1404. Stjepan's father held hereditary lands in the Upper Drina region. Stjepan was a member of the Kosača noble family and became its chieftain in 1435 when he succeeded his uncle, Duke Sandalj, as Duke of Humska zemlja and the Grand Duke of Bosnia. Stjepan influenced the development of the late Bosnian medieval state more than any other person of his era.

Serbs of Bosnia and Herzegovina or Bosnian Serbs, are one of the three constituent peoples of Bosnia and Herzegovina. According to data from the 2013 census, the population of ethnic Serbs in Bosnia and Herzegovina was 1,086,733, constituting 30.8% of the total population; they are the second-largest ethnic group in the country (after Bosniaks) and live predominantly in the political-territorial entity of Republika Srpska.

Serbs have a long history of inhabiting the present-day territory of Bosnia and Herzegovina as well as long history of statehood in that territory. Slavs settled the Balkans in the 6th century and the Serbs were one of the main tribes who settled the peninsula including parts of modern-day Bosnia and Herzegovina. Parts of Bosnia were ruled by the Serbian prince Časlav in the 10th century while the southeastern and eastern parts became integrated into the Serbian medieval state under the Nemanjić dynasty by the 13th-14th centuries. After the Ottoman conquest of Bosnia and Herzegovina, the majority of the Orthodox Christian population in the region retained their Serbian ethnic and religious identity under the restored Serbian Patriarchate of Peć, while many landowners converted to Islam. Throughout the period of Ottoman rule, the Serbs of Bosnia and Herzegovina, formed the core of several major uprisings against Ottoman rule. In 1878, following the Congress of Berlin, Austria-Hungary occupied Bosnia and Herzegovina, facing resistance from the Serb population, which increasingly aspired to unification with the Kingdom of Serbia, culminating in growing tensions that contributed to the assassination of Archduke Franz Ferdinand in Sarajevo, which led to the outbreak of World War I.

Bosniaks, often referred to as Bosnian Muslims, are a South Slavic ethnic group and nation native to Bosnia and Herzegovina and constitute the largest ethnic group in Bosnia and Herzegovina, followed by Serbs and Croats. They are one of the three constitutive nations of Bosnia and Herzegovina. They share a common ancestry, culture, history and the Bosnian language; and traditionally and predominantly adhere to Sunni Islam. The Bosniaks constitute significant native communities in Serbia, Montenegro, Croatia and Kosovo as well. Largely due to displacement stemming from the Bosnian War and Genocide in the 1990s, they also form a significant diaspora with several Bosniak communities across Europe, the Americas and Oceania.

A distinct identity of Bosnian Muslims began to form after the Islamisation of the Christian multi-ethnic Slavic-speaking population in Bosnia and Herzegovina at the end of the 15th and, mainly, in the 16th century, following the Ottoman conquest of Bosnia and Herzegovina. Bosniaks are typically characterised by their historic ties to the Bosnian historical region, adherence to Islam since the 15th and 16th centuries, and the Bosnian language, a standardised variety of Serbo-Croatian. During Austro-Hungarian rule in Bosnia and Herzegovina, the Bosnian Muslims largely rejected the modern form of nationhood and the Bosniak name promoted by the Austrian-Hungarian authorities, which they considered a foreign imposition. Their elites were divided between the Serb and Croat national identities, a situation that persisted after World War I and World War II until their distinct national identity as Muslims was recognised by the Yugoslav constitution in 1974. Bosniaks self-identified simply as Muslims in a national sense until 1993, when their leading political Party of Democratic Action adopted the term Bosniak.