Vassil Tzankov

Georgi Delchev Bradistilov (Bulgarian: Георги Делчев Брадистилов; 25 October 1904 [12 October 1904 O.S.] – 18 June 1977) was a Bulgarian mathematician.

The Central Sofia Cemetery (Bulgarian: Централни софийски гробища, Tsentralni sofiyski grobishta) or the Orlandovtsi Cemetery ("Орландовци") is the main cemetery in Sofia, the capital of Bulgaria. The cemetery has several chapels used by various Christian denominations, such as a Bulgarian Orthodox church of the Dormition of the Theotokos, a Roman Catholic chapel of Saint Francis of Assisi, an Armenian Apostolic chapel, a Jewish synagogue, etc. The cemetery also features Russian, Serbian, Romanian and British military sections.

Serdika or Serdica is the historical Roman name of Sofia, now the capital of Bulgaria, and is also the name of a district (Bulgarian: Сердика [ˈsɛrdikɐ]) located in the center of the city. It includes four neighbourhoods: "Fondovi zhilishta"; "Banishora", "Orlandovtsi" and "Malashevtsi" as well as the central parts of "Draz mahala". It has an area of 17.53 km² that counts for 1.3% of the total Capital Municipality area and 8.8% of the city proper. As of 2006 Serdica has a population of 52,918. There are 6 kindergartens, 13 schools and 6 chitalishta in the territory of the district. Healthcare infrastructure includes II and V City Hospitals; Institute of Transport Medicine and two polyclinics. The Sofia Central Railway Station; Central Bus Station Sofia and the Lavov Most are also located in Serdica.

Central Bus Station Sofia (Bulgarian: Централна автогара София, romanized: Tsentralna avtogara Sofiya; abbreviated as CBS) is the main bus station of Sofia, Bulgaria. Its building was opened in 2004 and covers an area of 7,173 square metres (77,210 sq ft), of which the waiting area is 1,500 square metres (16,000 sq ft). The bus station has 57 ticket windows, which accept cash, debit and credit. At any time, between 47 and 50 buses may enter or leave the station from 50 domestic and international bus stops. Ten additional bus stops are made available on days with heavy traffic. 2,250 passengers may pass through the waiting area in one hour. There are 130 surveillance cameras.

The Principality of Bulgaria (Bulgarian: Княжество България, romanized: Knyazhestvo Balgariya) was a de facto independent, and de jure vassal state under the suzerainty of the Ottoman Empire. It was established by the Treaty of Berlin in 1878. After the Russo-Turkish War ended with a Russian victory, the Treaty of San Stefano was signed by Russia and the Ottoman Empire on 3 March 1878. Under this, a large Bulgarian vassal state was agreed to, which was significantly larger: its lands encompassed nearly all ethnic Bulgarians in the Balkans, and included most of Moesia, Thrace and Macedonia, stretching from the Black Sea to the Aegean. However, the United Kingdom and Austria-Hungary were against the establishment of such a large Russian client state in the Balkans, fearing it would shift the balance of power in the Mediterranean. Due to this, the great powers convened and signed the Treaty of Berlin, superseding the Treaty of San Stefano, which never went into effect. This created a much smaller principality, alongside an autonomous Eastern Rumelia within the Ottoman Empire. Although an Ottoman vassal, Bulgaria only acknowledged the authority of the Sublime Porte in a formal way. It had its own Constitution, flag and anthem, and conducted its own foreign policy. In 1885, a bloodless revolution resulted in Eastern Rumelia being de facto annexed by Bulgaria, which the Ottoman Empire accepted with the Tophane Agreement. On 5 October 1908, Bulgaria declared its independence as the Kingdom of Bulgaria.

The Siege of Sofia took place in 1382 or 1385 during the course of the Bulgarian–Ottoman wars. Unable to defend his country from the Ottomans, in 1373 the Bulgarian emperor Ivan Shishman agreed to become an Ottoman vassal and to marry his sister Kera Tamara to their sultan Murad I, while the Ottomans were to return some conquered fortresses. Despite the peace, in the beginning of the 1380s the Ottomans resumed their campaigns and besieged the important city of Sofia which controlled major communication routes to Serbia and Macedonia. There are little records about the siege. After the futile attempts to storm the city, the Ottoman commander Lala Shahin Pasha considered to abandon the siege. However, a Bulgarian renegate managed to lure the city governor ban Yanuka out of the fortress to hunt and the Turks captured him. Leaderless, the Bulgarians surrendered. The city walls were destroyed and an Ottoman garrison was installed. With the way to the north-west cleared, the Ottomans pressed further and captured Pirot and Niš in 1386, thus wedging between Bulgaria and Serbia.

The Church of St Paraskeva (Bulgarian: църква "Света Параскева", tsarkva "Sveta Paraskeva") is a Bulgarian Orthodox church in Sofia, the capital of Bulgaria. The church, dedicated to Saint Paraskeva, is located on 58 Georgi Rakovski Street in the centre of the city. It is the third-largest church in Sofia. Plans to build a church at the site date to 1910, when Stuttgart-educated Bulgarian architect Anton Tornyov (1868–1942) won a competition for the church's design. Due to the Balkan Wars and World War I, however, the construction was postponed. In 1922, the church board of trustees announced another competition, which was again won by Tornyov. The construction of the Church of St Paraskeva was complete by 1930, but the finishing works on the porticos did not cease until 1940. St Paraskeva has a somewhat unusual design for an Eastern Orthodox church. For example, the cella is in practice a round chamber over 20 metres (66 ft) in diameter. The cella gradually disintegrates into the surrounding apses.

Sofia Thermal Power Plant (Bulgarian: ТЕЦ София) is a power plant situated near the capital of Bulgaria, Sofia. It has an installed capacity of 130 MW.

The First English Language School (FELS, 114th High School "Liliana Dimitrova") was founded in 1958 in Sofia, Bulgaria as a high school for education in English language as a foreign language to Bulgarian high school students. The school has occupied its location at 60 Dondukov Street since 1960 and shares it with the 112th Elementary School. FELS became a UNESCO associated school in 1978. It is considered to be one of the most prestigious public high schools in the country. Over 90% of its graduates pursue their higher education in schools and universities in Bulgaria, the EU and the United States.

Sofia ( SOH-fee-ə, SOF-; Bulgarian: София, romanized: Sofiya, IPA: [ˈsɔfijɐ] (listen)) is the capital and largest city of Bulgaria. It is situated in the Sofia Valley at the foot of the Vitosha mountain in the western parts of the country. The city is built west of the Iskar river, and has many mineral springs, such as the Sofia Central Mineral Baths. It has a humid continental climate. Being in the centre of the Balkans, it is midway between the Black Sea and the Adriatic Sea, and closest to the Aegean Sea.Known as Serdica in Antiquity and Sredets in the Middle Ages, Sofia has been an area of human habitation since at least 7000 BC. The recorded history of the city begins with the attestation of the conquest of Serdica by the Roman Republic in 29 BC from the Celtic tribe Serdi. During the decline of the Roman Empire, the city was raided by Huns, Visigoths, Avars and Slavs. In 809 Serdica was incorporated into the Bulgarian Empire by Khan Krum and became known as Sredets. In 1018, the Byzantines ended Bulgarian rule until 1194, when it was reincorporated by the reborn Bulgarian Empire. Sredets became a major administrative, economic, cultural and literary hub until its conquest by the Ottomans in 1382. From 1530 to 1836, Sofia was the regional capital of Rumelia Eyalet, the Ottoman Empire's key province in Europe. Bulgarian rule was restored in 1878. Sofia was selected as the capital of the Third Bulgarian State in the next year, ushering a period of intense demographic and economic growth. Sofia is the 14th largest city in the European Union. It is surrounded by mountainsides, such as Vitosha by the southern side, Lyulin by the western side, and the Balkan Mountains by the north, which makes it the third highest European capital after Andorra la Vella and Madrid. Being Bulgaria's primate city, Sofia is home of many of the major local universities, cultural institutions and commercial companies. The city has been described as the "triangle of religious tolerance". This is due to the fact that three temples of three major world religions—Christianity, Islam and Judaism—are situated within one square: Sveta Nedelya Church, Banya Bashi Mosque and Sofia Synagogue. This triangle was recently expanded to a "square" and includes the Catholic Cathedral of St Joseph.Sofia has been named one of the top ten best places for start-up businesses in the world, especially in information technologies. It was Europe's most affordable capital to visit in 2013. In 1979, the Boyana Church in Sofia was included onto the World Heritage List, and it was deconstructed in the Second Bulgarian Empire, holding much patrimonial symbolism to the Bulgarian Orthodox Church. With its cultural significance in Southeast Europe, Sofia is home to the National Opera and Ballet of Bulgaria, the National Palace of Culture, the Vasil Levski National Stadium, the Ivan Vazov National Theatre, the National Archaeological Museum, and the Serdica Amphitheatre. The Museum of Socialist Art includes many sculptures and posters that educate visitors about the lifestyle in communist Bulgaria.The population of Sofia declined from 70,000 in the late 18th century, through 19,000 in 1870, to 11,649 in 1878, after which it began increasing. Sofia hosts some 1.29 million residents within a territory of 492 km2, a concentration of 17.9% of the country population within the 200th percentile of the country territory. The urban area of Sofia hosts some 1.54 million residents within 5723 km2, which comprises Sofia City Province and parts of Sofia Province (Dragoman, Slivnitsa, Kostinbrod, Bozhurishte, Svoge, Elin Pelin, Gorna Malina, Ihtiman, Kostenets) and Pernik Province (Pernik, Radomir), representing 5.16% of the country territory. The metropolitan area of Sofia is based upon one hour of car travel time, stretches internationally and includes Dimitrovgrad in Serbia. The metropolitan region of Sofia is inhabited by a population of 1.67 million.

Radio Jazz FM is a jazz radio station in Bulgaria that started in 2001. It is part of BTV Media Group, which is owned by Central European Media Enterprises. From 2001 to 2006 it aired in Plovdiv, Varna, Burgas, Blagoevgrad, Ruse, Stara Zagora, and Sofia. From its first years it aired special projects with Radio Net and Sport Radio. Starting in 2005 the radio aired the Doiche Vele news. In 2006 the radio was replaced in all cities, except Sofia, by N-JOY.

Lavov most Metro Station (Bulgarian: Метростанция "Лъвов мост") is a station on the Sofia Metro in Bulgaria. It opened on 31 August 2012. Bulgaria's PM Boyko Borisov and the President of the European Commission Jose Manuel Barroso inaugurated the new section of the Sofia Metro, which was funded with EU money.