The Ruins of Delphi, an ancient town on the slopes of Mount Parnassus in central Greece, in the south of the Balkan Peninsula. The place was once home to the sacred oracle of Pythia, the high priestess of the Temple of Apollo, a leading Greek god (one of the 12 Olympians). The sanctuary including an amphitheater was centered around the omphalós (ὀμφᾰλός), the "navel of the world," a mark in stone that Zeus himself had set.
Image: Ning Tranquiligol
Middle Ages
Invasions and Empires Migrations and Schism
Starting in the 3rd century CE, Rome's frontiers weakened, allowing waves of peoples, including Goths and Huns, to cross into the territory. Slavic tribes migrated in large numbers in the 6th and 7th centuries, becoming the South Slavs. The East-West Schism of 1054 CE formally divided Christianity into Roman Catholicism and Eastern Orthodoxy, with the dividing line running through the Balkans.
Regional Powers
Byzantine Empire
The
Byzantine Empire also known as the E
astern Roman Empire, was the continuation of the
Roman Empire of Augustinus and Caesar.
Emperor Constantine moved the imperial capital from
Rome to
Byzantium in 330 CE and renamed it
Constantinople. (formerly Byzantium, later Istanbul and since March 1930 officially Istanbul).
The empire preserved its laws, governance, and identity as "Romans," but it evolved significantly by shifting its capital to Constantinople,
adopting Christianity as the official religion, and gradually changed from Latin to Greek as the dominant language.
First Bulgarian Empire
The
First Bulgarian Empire (7th-11th centuries) and the
Serbian Empire (mid-14th century) were powerful medieval states that vied for control of the peninsula.
Republic of Venice
The
Republic of Venice (697–1797), a maritime power with its capital in
Venice on the northern Adriatic coast in today Italy. The Republic possessed a vast maritime empire known as the
Stato da Màr, which controlled much of the Adriatic trade. Venice possessions included territories across the Mediterranean and Adriatic seas, such as Crete,
Cyprus, and parts of Greece and the Balkan coast.
Ottoman Era and Nationalism
Sturm der Türken auf die Löwelbastei 1683 (Storming of the Loewel Bastion by the Turks, Vienna, Österreichische Galerie).
Image: Leander Russ
The Ottoman Conquest
In the 14th and 15th centuries, the Ottoman Empire gradually conquered the Balkans, a process that was aided by the political divisions among the local Christian states. The Battle of Kosovo in 1389 and the Fall of Constantinople in 1453 were pivotal events that sealed Ottoman dominance for nearly 500 years.
Rise of Nationalism
Beginning in the 19th century, a wave of nationalism inspired the Balkan peoples to seek independence. This led to national awakenings and wars of independence, resulting in the creation of modern nation-states like Greece, Serbia, Montenegro, and Bulgaria by the late 19th and early 20th centuries.
The 20th Century to the Present "Powder Keg" of Europe
The declining Ottoman presence and the ambitions of new nation-states created instability, earning the region the nickname "powder keg".
Balkan Wars (1912-1913)
A series of conflicts that saw the Balkan states strip the Ottomans of nearly all their remaining European territory, and then fight among themselves over the spoils.
World War I
The assassination of Austro-Hungarian
Archduke Franz Ferdinand in Sarajevo by a Bosnian Serb nationalist in 1914 triggered World War I.
Cold War and Breakup
After World War II, most Balkan countries came under communist regimes, with the notable exception of Greece and Turkey. Yugoslavia was created as a large, multi-ethnic federal state but broke apart in the 1990s following the collapse of communism, leading to a series of brutal civil wars and ethnic conflicts.
Since the breakup of Yugoslavia in 1991-92 the region is home to ten nations plus
Kosovo (only partly recognized) and the European part of
Turkey. Countries related to the Balkans are:
Albania,
Bosnia and Herzegovina,
Bulgaria,
Croatia,
Greece,
Montenegro,
North Macedonia,
Romania, and
Serbia.
2015 European migrant crisis
During the 2015 European migrant crisis, the Balkan Peninsula temporarily became the main overland transit corridor for refugees traveling from Turkey and Greece toward Central and Northern Europe. This so-called
Balkan Route highlighted the peninsula's enduring role as a geographic bridge between regions, while also exposing political and infrastructural limits across both EU and non-EU states. Although the route was largely closed by early 2016, the episode remains a significant example of how geography continues to shape human movement in modern Europe.