Koznitsa (tunnel) and Sofia

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Difference between Koznitsa (tunnel) and Sofia

Koznitsa (tunnel) vs. Sofia

Koznitsa (Козница) is a railway tunnel under the Koznitsa ridge in the Stara planina (Balkan Mountains), the longest tunnel in Bulgaria. Sofia (Sofiya) is the capital and largest city of Bulgaria.

Balkan Mountains

The Balkan mountain range is located in the eastern part of the Balkans in Southeastern Europe.

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Bulgaria

Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. Located west of the Black Sea and south of the Danube river, Bulgaria is bordered by Greece and Turkey to the south, Serbia and North Macedonia to the west, and Romania to the north. It covers a territory of and is the 16th largest country in Europe. Sofia is the nation's capital and largest city; other major cities include Burgas, Plovdiv, and Varna. One of the earliest societies in the lands of modern-day Bulgaria was the Karanovo culture (6,500 BC). In the 6th to 3rd century BC, the region was a battleground for ancient Thracians, Persians, Celts and Macedonians; stability came when the Roman Empire conquered the region in AD 45. After the Roman state splintered, tribal invasions in the region resumed. Around the 6th century, these territories were settled by the early Slavs. The Bulgars, led by Asparuh, attacked from the lands of Old Great Bulgaria and permanently invaded the Balkans in the late 7th century. They established the First Bulgarian Empire, victoriously recognised by treaty in 681 AD by the Byzantine Empire. It dominated most of the Balkans and significantly influenced Slavic cultures by developing the Cyrillic script. The First Bulgarian Empire lasted until the early 11th century, when Byzantine emperor Basil II conquered and dismantled it. A successful Bulgarian revolt in 1185 established a Second Bulgarian Empire, which reached its apex under Ivan Asen II (1218–1241). After numerous exhausting wars and feudal strife, the empire disintegrated and in 1396 fell under Ottoman rule for nearly five centuries. The Russo-Turkish War of 1877–78 resulted in the formation of the third and current Bulgarian state, which declared independence from the Ottoman Empire in 1908. Many ethnic Bulgarians were left outside the new nation's borders, which stoked irredentist sentiments that led to several conflicts with its neighbours and alliances with Germany in both world wars. In 1946, Bulgaria came under the Soviet-led Eastern Bloc and became a socialist state. The ruling Communist Party gave up its monopoly on power after the revolutions of 1989 and allowed multiparty elections. Bulgaria then transitioned into a democracy and a market-based economy. Since adopting a democratic constitution in 1991, Bulgaria has been a unitary parliamentary republic composed of 28 provinces, with a high degree of political, administrative, and economic centralisation. Bulgaria has a high-income economy, its market economy is part of the European Single Market and is largely based on services, followed by industry—especially machine building and mining—and agriculture. The country faces a demographic crisis; its population peaked at 9 million in 1989, and has since decreased to under 6.4 million as of 2024. Bulgaria is a member of the European Union, the Schengen Area, NATO, and the Council of Europe. It is also a founding member of the OSCE and has taken a seat on the United Nations Security Council three times.

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