Bulgaria the Republic of Bulgaria, is a country in Southeast Europe. It is bordered by Romania to the north and North Macedonia to the west and Turkey to the south, the Black Sea to the east; the capital and largest city is Sofia. With a territory of 110,994 square kilometres, Bulgaria is Europe's 16th-largest country. One of the earliest societies in the lands of modern-day Bulgaria was the Neolithic Karanovo culture, which dates back to 6,500 BC. In the 6th to 3rd century BC the region was a battleground for Thracians, Persians and ancient Macedonians; the Eastern Roman, or Byzantine, Empire lost some of these territories to an invading Bulgar horde in the late 7th century. The Bulgars founded the First Bulgarian Empire in AD 681, which dominated most of the Balkans and influenced Slavic cultures by developing the Cyrillic script; this state 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.
After numerous exhausting wars and feudal strife, the Second Bulgarian Empire disintegrated in 1396 and its territories fell under Ottoman rule for nearly five centuries. The Russo-Turkish War of 1877–78 resulted in the formation of the current Third Bulgarian State. Many ethnic Bulgarian populations were left outside its borders, which led to several conflicts with its neighbours and an alliance with Germany in both world wars. In 1946 Bulgaria became part of the Soviet-led Eastern Bloc; the ruling Communist Party gave up its monopoly on power after the revolutions of 1989 and allowed multi-party elections. Bulgaria transitioned into a democracy and a market-based economy. Since adopting a democratic constitution in 1991, the sovereign state has been a unitary parliamentary republic with a high degree of political and economic centralisation; the population of seven million lives in Sofia and the capital cities of the 27 provinces, the country has suffered significant demographic decline since the late 1980s.
Bulgaria is a member of the European Union, NATO, the Council of Europe. Its market economy is part of the European Single Market and relies on services, followed by industry—especially machine building and mining—and agriculture. Widespread corruption is a major socioeconomic issue; the name Bulgaria is derived from a tribe of Turkic origin that founded the country. Their name is not understood and difficult to trace back earlier than the 4th century AD, but it is derived from the Proto-Turkic word bulģha and its derivative bulgak; the meaning may be further extended to "rebel", "incite" or "produce a state of disorder", i.e. the "disturbers". Ethnic groups in Inner Asia with phonologically similar names were described in similar terms: during the 4th century, the Buluoji, a component of the "Five Barbarian" groups in Ancient China, were portrayed as both a "mixed race" and "troublemakers". Neanderthal remains dating to around 150,000 years ago, or the Middle Paleolithic, are some of the earliest traces of human activity in the lands of modern Bulgaria.
The Karanovo culture arose circa 6,500 BC and was one of several Neolithic societies in the region that thrived on agriculture. The Copper Age Varna culture is credited with inventing gold metallurgy; the associated Varna Necropolis treasure contains the oldest golden jewellery in the world with an approximate age of over 6,000 years. The treasure has been valuable for understanding social hierarchy and stratification in the earliest European societies; the Thracians, one of the three primary ancestral groups of modern Bulgarians, appeared on the Balkan Peninsula some time before the 12th century BC. The Thracians excelled in metallurgy and gave the Greeks the Orphean and Dionysian cults, but remained tribal and stateless; the Persian Achaemenid Empire conquered most of present-day Bulgaria in the 6th century BC and retained control over the region until 479 BC. The invasion became a catalyst for Thracian unity, the bulk of their tribes united under king Teres to form the Odrysian kingdom in the 470s BC.
It was weakened and vassalized by Philip II of Macedon in 341 BC, attacked by Celts in the 3rd century, became a province of the Roman Empire in AD 45. By the end of the 1st century AD, Roman governance was established over the entire Balkan Peninsula and Christianity began spreading in the region around the 4th century; the Gothic Bible—the first Germanic language book—was created by Gothic bishop Ulfilas in what is today northern Bulgaria around 381. The region came under Byzantine control after the fall of Rome in 476; the Byzantines were engaged in prolonged warfare against Persia and could not defend their Balkan territories from barbarian incursions. This enabled the Slavs to enter the Balkan Peninsula as marauders through an area between the Danube River and the Balkan Mountains known as Moesia; the interior of the peninsula became a country of the South Slavs, who lived under a democracy. The Slavs assimilated the Hellenized and Gothicized Thracians in the rural areas. Not l
The term "tetrarchy" describes any form of government where power is divided among four individuals, but in modern usage refers to the system instituted by Roman Emperor Diocletian in 293, marking the end of the Crisis of the Third Century and the recovery of the Roman Empire. This tetrarchy lasted until c. 313, when mutually destructive civil wars eliminated most of the claimants to power, leaving Constantine in control of the western half of the empire, Licinius in control of the eastern half. Although the term "tetrarch" was current in antiquity, it was never used of the imperial college under Diocletian. Instead, the term was used to describe independent portions of a kingdom that were ruled under separate leaders; the tetrarchy of Judaea, established after the death of Herod the Great, is the most famous example of the antique tetrarchy. The term was understood in the Latin world as well, where Pliny the Elder glossed it as follows: "each is the equivalent of a kingdom, part of one"; as used by the ancients, the term describes not only different governments, but a different system of government from the Diocletianic arrangements.
The Judaean tetrarchy was a set of four independent and distinct states, where each tetrarch ruled a quarter of a kingdom as they saw fit. When authors described the period, this is what they emphasized: Ammianus had Constantius II admonish Gallus for disobedience by appealing to the example in submission set by Diocletian's lesser colleagues. Only Lactantius, a contemporary of Diocletian and a deep ideological opponent of the Diocletianic state, referred to the tetrarchs as a simple multiplicity of rulers. Much modern scholarship was written without the term. Although Edward Gibbon pioneered the description of the Diocletianic government as a "New Empire", he never used the term "tetrarchy", it did not appear in the literature until used in 1887 by schoolmaster Hermann Schiller in a two-volume handbook on the Roman Empire, to wit: "die diokletianische Tetrarchie". So, the term did not catch on in the literature until Otto Seeck used it in 1897; the first phase, sometimes referred to as the diarchy, involved the designation of the general Maximian as co-emperor—firstly as Caesar in 285, followed by his promotion to Augustus in 286.
Diocletian took care of matters in the eastern regions of the empire while Maximian took charge of the western regions. In 293, Diocletian thought that more focus was needed on both civic and military problems, so with Maximian's consent, he expanded the imperial college by appointing two Caesars —Galerius and Constantius Chlorus. In 305, the senior emperors jointly abdicated and retired, allowing Constantius and Galerius to be elevated in rank to Augustus, they in turn appointed two new Caesars—Severus II in the west under Constantius, Maximinus in the east under Galerius—thereby creating the second Tetrarchy. The four tetrarchs based themselves not at Rome but in other cities closer to the frontiers intended as headquarters for the defence of the empire against bordering rivals and barbarians at the Rhine and Danube; these centres are known as the tetrarchic capitals. Although Rome ceased to be an operational capital, Rome continued to be nominal capital of the entire Roman Empire, not reduced to the status of a province but under its own, unique Prefect of the City.
The four tetrarchic capitals were: Nicomedia in northwestern Asia Minor, a base for defence against invasion from the Balkans and Persia's Sassanids was the capital of Diocletian, the eastern Augustus. Sirmium was the capital of the eastern Caesar. Mediolanum was the capital of the western Augustus. Augusta Treverorum was the capital of Constantius Chlorus, the western Caesar, near the strategic Rhine border; this quarter became the prefecture Galliae. Aquileia, a port on the Adriatic coast, Eboracum, were significant centres for Maximian and Constantius respectively. In terms of regional jurisdiction there was no precise division among the four tetrarchs, this period did not see the Roman state split up into four distinct sub-empires; each emperor had his zone of influence within the Roman Empire, but little more high command in a'war theater'. Each tetrarch was himself in the field, while delegating most of the administration to the hierarchic bureaucracy headed by his respective Pretorian Prefect, each supervising several Vicarii, the governors-general in charge of another, lasting new administrative level, the civi
Germania Superior was an imperial province of the Roman Empire. It comprised an area of today's western Switzerland, the French Jura and Alsace regions, southwestern Germany. Important cities were Besançon, Strasbourg and Germania Superior's capital, Mainz, it comprised the Middle Rhine, bordering on the Limes Germanicus, on the Alpine province of Raetia to the south-east. Although it had been occupied militarily since the reign of Augustus, Germania Superior was not made into an official province until c. 85 AD. The terms, "Upper Germania" and "Lower Germania" do not appear in the Gallic Wars of Julius Caesar, yet he writes about reports that the people who lived in those regions were referred to as Germani locally, a term used for a tribe that the Romans called the Germani Cisrhenani, that the name Germania seems to have been adopted to designate other indigenous tribes in the area. Lower Germania was occupied by the Belgae. Upper Germania was occupied by Gaulish tribes including the Helvetii, Sequani and Treveri, and, on the north bank of the middle Rhine, the remnant of the Germanic troops that had attempted to take Vesontio under Ariovistus, but who were defeated by Caesar in 58 BC.
The Romans did not abandon this region at any time after then. During a 5-year period in the initial years of his reign, as Cassius Dio tells us, Octavian Caesar assumed direct governorship of the major senatorial provinces on grounds that they were in danger of insurrection and he alone commanded the troops required to restore security, they were to be restored to the senate in 10 years under proconsuls elected by the senate. Among these independent provinces were upper Germania, it had become a province in the last years of the republic. Tacitus mentions it as the province of Germania Superior in his Annales. Cassius Dio viewed the Germanic tribes as Celts, an impression given by Belgica, the name assigned to lower Germania at the time. Dio does not mention the border, it is not clear. Today we call the section of the Rhine running through upper Germania the middle Rhine. Augustus had planned to incorporate all of central Germania in Germania Magna; this plan was frustrated by the Germanic tribesmen at the Battle of Teutoburg Forest.
Augustus decided to limit the empire at the Rhine-Danube border. Thereafter continual conflict prevailed along it, forcing the Romans to conduct punitive expeditions and fortify Germania Superior. By 12 BC, major bases existed from which Drusus operated. A system of forts developed around these bases. In 69-70, all the Roman fortications along the Rhine and Danube were destroyed by Germanic insurrections and civil war between the legions. At the conclusion of this violent but brief social storm they were rebuilt more extensively than before, with a road connecting Mainz and Augsburg. Domitian went to war against the Chatti in 83-85. At this time the first line, or continuous fortified border, was constructed, it consisted of a cleared zone of observation, a palisade where practicable, wooden watchtowers and forts at the road crossings. The system reached maximum extent by 90. A Roman road went through the Odenwald and a network of secondary roads connected all the forts and towers; the plan governing the development of the limes was simple.
From a strategic point of view, the Agri Decumates, or region between the Rhine and Danube, offers a bulge in the line between the Celts and the Germanics, which the Germanics had tried to exploit under Ariovistus. The bulge divided the densely populated Celtic settlements along the entire river system in two. Invading forces could move up under cover of the Black Forest. Roman defensive works therefore cut across the base of the bulge, denying the protected corridor and shortening the line; the key point was the shoulder of the bulge at Mogontiacum where the masse de manoevre or strategic reserves were located. The forts through the forest were lightly defended and on that account were always being burned by the Alamanni, they gave advance notice, however. On being notified, the legions would strike out in preventative and punitive expeditions from Mainz or Strasburg, or Augsburg on the other side; the entire system could only succeed. Fixed defenses alone are not much of a defense, in either modern times.
Other forces are required for attack. At best the fixed defenses serve to delay until a counterattack can be launched. For more complete details on the development of the limes, or frontier, see under Limes Germanicus. In the subsequent peaceful years, the limes lost its temporary character. Vici, or communities, developed around the forts. By 150, the towers and the bases had been rebuilt in stone; the soldiers now lived in good stone barracks within walls decorated by frescoes. Germanic civilization had changed as well. Where Caesar had described burning the wretched brush hovels of the Suebi who had come to fight for Ariovistus, the Chatti and the Alamanni now lived in comfortable Romanized villages around the limes. Germania Superior was reestablished as an Imperial Roman province in 90, taking large amounts of territory from Gallia Lugdunensis. One of its first and most famous governors was the future Emperor Trajan, who ruled the province from 96 until his accession in 98; the Helvetii settlement area became part of the province of Ge
Serbia the Republic of Serbia, is a country situated at the crossroads of Central and Southeast Europe in the southern Pannonian Plain and the central Balkans. The sovereign state borders Hungary to the north, Romania to the northeast, Bulgaria to the southeast, North Macedonia to the south and Bosnia and Herzegovina to the west, Montenegro to the southwest; the country claims a border with Albania through the disputed territory of Kosovo. Serbia's population is about seven million, its capital, ranks among the oldest and largest citiеs in southeastern Europe. Inhabited since the Paleolithic Age, the territory of modern-day Serbia faced Slavic migrations to the Balkans in the 6th century, establishing several sovereign states in the early Middle Ages at times recognized as tributaries to the Byzantine and Hungarian kingdoms; the Serbian Kingdom obtained recognition by the Vatican and Constantinople in 1217, reaching its territorial apex in 1346 as the short-lived Serbian Empire. By the mid-16th century, the entirety of modern-day Serbia was annexed by the Ottomans, their rule was at times interrupted by the Habsburg Empire, which started expanding towards Central Serbia from the end of the 17th century while maintaining a foothold in the north of the country.
In the early 19th century, the Serbian Revolution established the nation-state as the region's first constitutional monarchy, which subsequently expanded its territory. Following disastrous casualties in World War I, the subsequent unification of the former Habsburg crownland of Vojvodina with Serbia, the country co-founded Yugoslavia with other South Slavic peoples, which would exist in various political formations until the Yugoslav Wars of the 1990s. During the breakup of Yugoslavia, Serbia formed a union with Montenegro, peacefully dissolved in 2006. In 2008, the parliament of the province of Kosovo unilaterally declared independence, with mixed responses from the international community. Serbia is a member of the UN, CoE, CERN, OSCE, PfP, BSEC, CEFTA, is acceding to the WTO. Since 2014 the country has been negotiating its EU accession with perspective of joining the European Union by 2025. Serbia dropped in ranking from Free to Partly Free in the 2019 Freedom House report. Since 2007, Serbia formally adheres to the policy of military neutrality.
An upper-middle income economy with a dominant service sector followed by the industrial sector and agriculture, the country ranks high on the Human Development Index, Social Progress Index as well as the Global Peace Index. The origin of the name, "Serbia" is unclear. Various authors mentioned names of Serbs and Sorbs in different variants: Surbii, Serbloi, Sorabi, Sarbi, Serboi, Surbi, etc; these authors used these names to refer to Serbs and Sorbs in areas where their historical presence was/is not disputed, but there are sources that mention same or similar names in other parts of the World. Theoretically, the root *sъrbъ has been variously connected with Russian paserb, Ukrainian pryserbytysia, Old Indic sarbh-, Latin sero, Greek siro. However, Polish linguist Stanisław Rospond derived the denomination of Srb from srbati. Sorbian scholar H. Schuster-Šewc suggested a connection with the Proto-Slavic verb for "to slurp" *sьrb-, with cognates such as сёрбать, сьорбати, сёрбаць, srbati, сърбам and серебати.
From 1945 to 1963, the official name for Serbia was the People's Republic of Serbia, which became the Socialist Republic of Serbia from 1963 to 1990. Since 1990, the official name of the country is the "Republic of Serbia". However, between the period from 1992 to 2006, the official names of the country were the Federal Republic of Yugoslavia and the State Union of Serbia and Montenegro. Archeological evidence of Paleolithic settlements on the territory of present-day Serbia are scarce. A fragment of a human jaw was believed to be up to 525,000 -- 397,000 years old. Around 6,500 years BC, during the Neolithic, the Starčevo and Vinča cultures existed in or near modern-day Belgrade and dominated much of Southeastern Europe. Two important local archeological sites from this era, Lepenski Vir and Vinča-Belo Brdo, still exist near the banks of the Danube. During the Iron Age, Thracians and Illyrians were encountered by the Ancient Greeks during their expansion into the south of modern Serbia in the 4th century BC.
The Celtic tribe of Scordisci settled throughout the area in the 3rd century BC and formed a tribal state, building several fortifications, including their capital at Singidunum and Naissos. The Romans conquered much of the territory in the 2nd century BC. In 167 BC the Roman province of Illyricum was established; as a result of this, contemporary Serbia extends or over several former Roman provinces, including Moesia, Praevalitana, Dalmatia and Macedoni