Moldova the Republic of Moldova, is a landlocked country in Eastern Europe, bordered by Romania to the west and Ukraine to the north and south. The capital city is Chișinău. Most of the Moldovan territory was a part of the Principality of Moldavia from the 14th century until 1812, when it was ceded to the Russian Empire by the Ottoman Empire and became known as Bessarabia. In 1856, southern Bessarabia was returned to Moldavia, which three years united with Wallachia to form Romania, but Russian rule was restored over the whole of the region in 1878. During the 1917 Russian Revolution, Bessarabia became autonomous and the independent Moldavian Democratic Republic until it was integrated into Romania in 1918 following a vote of its assembly; the decision was disputed by Soviet Russia, which in 1924 allowed the establishment, within the Ukrainian SSR, of a Moldavian autonomous republic on partial Moldovan-inhabited territories to the east of the Dniester. In 1940, as a consequence of the Molotov–Ribbentrop Pact, Romania was compelled to cede Bessarabia to the Soviet Union, leading to the creation of the Moldavian Soviet Socialist Republic, which included the greater part of Bessarabia and the westernmost strip of the former MASSR.
On 27 August 1991, as the dissolution of the Soviet Union was under way, the Moldavian SSR declared independence and took the name Moldova. The Constitution of Moldova was adopted in 1994; the strip of the Moldovan territory on the east bank of the Dniester river has been under the de facto control of the breakaway government of Transnistria since 1990. Due to a decrease in industrial and agricultural output following the dissolution of the Soviet Union, the service sector has grown to dominate Moldova's economy and is over 60% of the nation's GDP, its economy is the poorest in Europe in per capita terms and has the lowest Human Development Index in the continent. Moldova is the least visited country in Europe by tourists with only 11,000 annually recorded visitors from abroad. Moldova is a parliamentary republic with a president as head of state and a prime minister as head of government, it is a member state of the United Nations, the Council of Europe, the World Trade Organization, the Organization for Security and Cooperation in Europe, the GUAM Organization for Democracy and Economic Development, the Commonwealth of Independent States and the Organization of the Black Sea Economic Cooperation and aspires to join the European Union.
The name "Moldova" is derived from the Moldova River. The origin of the name of the river remains unclear. According to a legend recounted by Moldavian chroniclers Dimitrie Cantemir and Grigore Ureche, Prince Dragoș named the river after hunting an aurochs: following the chase, the prince's exhausted hound Molda drowned in the river; the dog's name, given to the river, extended to the Principality. For a short time in the 1990s, at the founding of the Commonwealth of Independent States, the name of the current Republic of Moldova was spelled "Moldavia". After the dissolution of the Soviet Union, the country began to use Moldova; the name Republic of Moldova is designated by the United Nations. The prehistory of Moldova covers the period from the Upper Paleolithic which begins with the presence of Homo sapiens in the area of Southeastern Europe some 44,000 years ago and extends into the appearance of the first written records in Classical Antiquity in Greece. In 2010 N. K. Anisjutkin discovered Oldowan flint tools at Bayraki.
During the Neolithic stone-age era, Moldova's territory stood at the centre of the large Cucuteni–Trypillia culture that stretched east beyond the Dniester River in Ukraine and west up to and beyond the Carpathian Mountains in Romania. The people of this civilization, which lasted from 5500 to 2750 BC, practised agriculture, raised livestock and made intricately-designed pottery. In antiquity, Moldova's territory was inhabited by Dacian tribes. Between the 1st and 7th centuries AD, the south was intermittently under the Roman, Byzantine Empires. Due to its strategic location on a route between Asia and Europe, the territory of modern Moldova was invaded many times in late antiquity and the early Middle Ages, including by Goths, Avars, Magyars, Cumans and Tatars. Friar William of Rubruck, who visited the court of the Great Khan in the 1250s, listed "the Blac", or Vlachs, among the peoples who paid tribute to the Mongols, but the Vlachs' territory is uncertain. Rubruck described "Blakia" as "Assan's territory" south of the Lower Danube, showing that he identified it with the northern regions of the Second Bulgarian Empire.
The Bolohoveni, a Vlach population, is mentioned by the Hypatian Chronicle in the 13th century. The chronicle shows that this land is bordered on the principalities of Halych and Kiev. Archaeological research identified the location of 13th-century fortified settlements in this region. Alexandru V. Boldur identified Voscodavie, Voloscovti, Volcovti and their other towns and villages between the middle course of the rivers Nistru/Dniester and Nipru/Dnieper; the Bolohoveni disappeared from chronicles after their defeat in 1257 by Daniel of Galicia's troops. In the early 13th century, the Brodniks, a possible Slavic–Vlach vassal state of Halych, were present, alongside the Vlachs, in much of the region's territory. On the border between Halych and the
The Ottoman Empire known in Western Europe as the Turkish Empire or Turkey, was a state that controlled much of Southeast Europe, Western Asia and North Africa between the 14th and early 20th centuries. It was founded at the end of the 13th century in northwestern Anatolia in the town of Söğüt by the Oghuz Turkish tribal leader Osman I. After 1354, the Ottomans crossed into Europe, with the conquest of the Balkans, the Ottoman beylik was transformed into a transcontinental empire; the Ottomans ended the Byzantine Empire with the 1453 conquest of Constantinople by Mehmed the Conqueror. During the 16th and 17th centuries, at the height of its power under the reign of Suleiman the Magnificent, the Ottoman Empire was a multinational, multilingual empire controlling most of Southeast Europe, parts of Central Europe, Western Asia, parts of Eastern Europe and the Caucasus, North Africa and the Horn of Africa. At the beginning of the 17th century, the empire contained numerous vassal states; some of these were absorbed into the Ottoman Empire, while others were granted various types of autonomy during the course of centuries.
With Constantinople as its capital and control of lands around the Mediterranean basin, the Ottoman Empire was at the centre of interactions between the Eastern and Western worlds for six centuries. While the empire was once thought to have entered a period of decline following the death of Suleiman the Magnificent, this view is no longer supported by the majority of academic historians; the empire continued to maintain a flexible and strong economy and military throughout the 17th and much of the 18th century. However, during a long period of peace from 1740 to 1768, the Ottoman military system fell behind that of their European rivals, the Habsburg and Russian empires; the Ottomans suffered severe military defeats in the late 18th and early 19th centuries, which prompted them to initiate a comprehensive process of reform and modernisation known as the Tanzimat. Thus, over the course of the 19th century, the Ottoman state became vastly more powerful and organised, despite suffering further territorial losses in the Balkans, where a number of new states emerged.
The empire allied with Germany in the early 20th century, hoping to escape from the diplomatic isolation which had contributed to its recent territorial losses, thus joined World War I on the side of the Central Powers. While the Empire was able to hold its own during the conflict, it was struggling with internal dissent with the Arab Revolt in its Arabian holdings. During this time, atrocities were committed by the Young Turk government against the Armenians and Pontic Greeks; the Empire's defeat and the occupation of part of its territory by the Allied Powers in the aftermath of World War I resulted in its partitioning and the loss of its Middle Eastern territories, which were divided between the United Kingdom and France. The successful Turkish War of Independence against the occupying Allies led to the emergence of the Republic of Turkey in the Anatolian heartland and the abolition of the Ottoman monarchy; the word Ottoman is a historical anglicisation of the name of Osman I, the founder of the Empire and of the ruling House of Osman.
Osman's name in turn was the Turkish form of the Arabic name ʿUthmān. In Ottoman Turkish, the empire was referred to as Devlet-i ʿAlīye-yi ʿOsmānīye, or alternatively ʿOsmānlı Devleti. In Modern Turkish, it is known as Osmanlı Devleti; the Turkish word for "Ottoman" referred to the tribal followers of Osman in the fourteenth century, subsequently came to be used to refer to the empire's military-administrative elite. In contrast, the term "Turk" was used to refer to the Anatolian peasant and tribal population, was seen as a disparaging term when applied to urban, educated individuals. In the early modern period, an educated urban-dwelling Turkish-speaker, not a member of the military-administrative class would refer to himself neither as an Osmanlı nor as a Türk, but rather as a Rūmī, or "Roman", meaning an inhabitant of the territory of the former Byzantine Empire in the Balkans and Anatolia; the term Rūmī was used to refer to Turkish-speakers by the other Muslim peoples of the empire and beyond.
In Western Europe, the two names "Ottoman Empire" and "Turkey" were used interchangeably, with "Turkey" being favoured both in formal and informal situations. This dichotomy was ended in 1920–23, when the newly established Ankara-based Turkish government chose Turkey as the sole official name. Most scholarly historians avoid the terms "Turkey", "Turks", "Turkish" when referring to the Ottomans, due to the empire's multinational character; as the Seljuk Sultanate of Rum declined in the 13th century, Anatolia was divided into a patchwork of independent Turkish principalities known as the Anatolian Beyliks. One of these beyliks, in the region of Bithynia on the frontier of the Byzantine Empire, was led by the Turkish tribal leader Osman I, a figure of obscure origins from whom the name Ottoman is derived. Osman's early followers consisted both of Turkish tribal groups and Byzantine renegades, many but not all converts to Islam. Osman extended the control of his principality by conquering Byzantine towns along the Sakarya River.
It is not well understood how the early Ottomans came to dominate their
Iran called Persia, the Islamic Republic of Iran, is a country in Western Asia. With over 81 million inhabitants, Iran is the world's 18th most populous country. Comprising a land area of 1,648,195 km2, it is the second largest country in the Middle East and the 17th largest in the world. Iran is bordered to the northwest by Armenia and the Republic of Azerbaijan, to the north by the Caspian Sea, to the northeast by Turkmenistan, to the east by Afghanistan and Pakistan, to the south by the Persian Gulf and the Gulf of Oman, to the west by Turkey and Iraq; the country's central location in Eurasia and Western Asia, its proximity to the Strait of Hormuz, give it geostrategic importance. Tehran is the country's capital and largest city, as well as its leading economic and cultural center. Iran is home to one of the world's oldest civilizations, beginning with the formation of the Elamite kingdoms in the fourth millennium BCE, it was first unified by the Iranian Medes in the seventh century BCE, reaching its greatest territorial size in the sixth century BCE, when Cyrus the Great founded the Achaemenid Empire, which stretched from Eastern Europe to the Indus Valley, becoming one of the largest empires in history.
The Iranian realm fell to Alexander the Great in the fourth century BCE and was divided into several Hellenistic states. An Iranian rebellion culminated in the establishment of the Parthian Empire, succeeded in the third century CE by the Sasanian Empire, a leading world power for the next four centuries. Arab Muslims conquered the empire in the seventh century CE; the Islamization of Iran led to the decline of Zoroastrianism, by the country's dominant religion, Iran's major contributions to art and science spread within the Muslim rule during the Islamic Golden Age. After two centuries, a period of various native Muslim dynasties began, which were conquered by the Seljuq Turks and the Ilkhanate Mongols; the rise of the Safavids in the 15th century led to the reestablishment of a unified Iranian state and national identity, with the country's conversion to Shia Islam marking a turning point in Iranian and Muslim history. Under Nader Shah, Iran was one of the most powerful states in the 18th century, though by the 19th century, a series of conflicts with the Russian Empire led to significant territorial losses.
The Iranian Constitutional Revolution in the early 20th century led to the establishment of a constitutional monarchy and the country's first legislature. A 1953 coup instigated by the United Kingdom and the United States resulted in greater autocracy and growing Western political influence. Subsequent widespread dissatisfaction and unrest against the monarchy led to the 1979 Revolution and the establishment of an Islamic republic, a political system that includes elements of a parliamentary democracy vetted and supervised by a theocracy governed by an autocratic "Supreme Leader". During the 1980s, the country was engaged in a war with Iraq, which lasted for eight years and resulted in a high number of casualties and economic losses for both sides; the sovereign state of Iran is a founding member of the UN, ECO, NAM, OIC, OPEC. It is a major regional and middle power, its large reserves of fossil fuels – which include the world's largest natural gas supply and the fourth largest proven oil reserves – exert considerable influence in international energy security and the world economy.
The country's rich cultural legacy is reflected in part by its 22 UNESCO World Heritage sites, the third largest number in Asia and 11th largest in the world. Iran is a multicultural country comprising numerous ethnic and linguistic groups, the largest being Persians, Azeris and Lurs. Organizations including Amnesty International and Human Rights Watch have criticized Iran's women's rights record; the term Iran derives directly from Middle Persian Ērān, first attested in a third-century inscription at Rustam Relief, with the accompanying Parthian inscription using the term Aryān, in reference to the Iranians. The Middle Iranian ērān and aryān are oblique plural forms of gentilic nouns ēr- and ary-, both deriving from Proto-Iranian *arya-, recognized as a derivative of Proto-Indo-European *ar-yo-, meaning "one who assembles". In the Iranian languages, the gentilic is attested as a self-identifier, included in ancient inscriptions and the literature of the Avesta, remains in other Iranian ethnic names Alan and Iron.
Iran has been referred to as Persia by the West, due to the writings of Greek historians who referred to all of Iran as Persís, meaning "land of the Persians", while Persis itself was one of the provinces of ancient Iran, today defined as Fars. As the most extensive interaction the Ancient Greeks had with any outsider was with the Persians, the term persisted long after the Greco-Persian Wars. In 1935, Reza Shah requested the international community to refer to the country by its native name, effective March 22 that year; as The New York Times explained at the time, "At the suggestion of the Persian Legation in Berlin, the Tehran government, on the Persian New Year, March 21, 1935, substituted Iran for Persia as the official name of the country." Opposition to the name change led to the reversal of the decision, Professor Ehsan Yarshater, editor of Encyclopædia Iranica, propagated a move to use Persia and Iran interchangeably. Today, both Iran and Persia are used in cultural contexts, while Iran remains irreplaceab
Infrastructure is the fundamental facilities and systems serving a country, city, or other area, including the services and facilities necessary for its economy to function. Infrastructure is composed of public and private physical improvements such as roads, tunnels, water supply, electrical grids, telecommunications. In general, it has been defined as "the physical components of interrelated systems providing commodities and services essential to enable, sustain, or enhance societal living conditions". There are two general types of ways to view infrastructure, soft. Hard infrastructure refers to the physical networks necessary for the functioning of a modern industry; this includes roads, railways, etc. Soft infrastructure refers to all the institutions that maintain the economic, health and cultural standards of a country; this includes educational programs, official statistics and recreational facilities, law enforcement agencies, emergency services. The word infrastructure has been used in English since 1887 and in French since 1875 meaning "The installations that form the basis for any operation or system".
The word was imported from French, where it means subgrade, the native material underneath a constructed pavement or railway. The word is a combination of the Latin prefix "infra", meaning "below" and many of these constructions are underground, for example, tunnels and gas systems, railways; the army use of the term achieved currency in the United States after the formation of NATO in the 1940s, by 1970 was adopted by urban planners in its modern civilian sense. A 1987 US National Research Council panel adopted the term "public works infrastructure", referring to: "... both specific functional modes – highways, streets and bridges. A comprehension of infrastructure spans not only these public works facilities, but the operating procedures, management practices, development policies that interact together with societal demand and the physical world to facilitate the transport of people and goods, provision of water for drinking and a variety of other uses, safe disposal of society's waste products, provision of energy where it is needed, transmission of information within and between communities."
The American Society of Civil Engineers publish a "Infrastructure Report Card" which represents the organizations opinion on the condition of various infrastructure every 2–4 years. As of 2017 they grade 16 categories, namely Aviation, Dams, Drinking Water, Hazardous Waste, Inland Waterways, Parks & Recreation, Rail, Schools, Solid Waste and Wastewater. A way to embody personal infrastructure is to think of it in term of human capital. Human capital is defined by the Encyclopedia Britannica as “intangible collective resources possessed by individuals and groups within a given population"; the goal of personal infrastructure is to determine the quality of the economic agents’ values. This results in three major tasks: the task of economic proxies’ in the economic process. Institutional infrastructure branches from the term "economic constitution". According to Gianpiero Torrisi, Institutional infrastructure is the object of economic and legal policy, it compromises the grown and sets norms. It refers to the degree of actual equal treatment of equal economic data and determines the framework within which economic agents may formulate their own economic plans and carry them out in co-operation with others.
Material infrastructure is defined as “those immobile, non-circulating capital goods that contribute to the production of infrastructure goods and services needed to satisfy basic physical and social requirements of economic agents". There are two distinct qualities of material infrastructures: 1) Fulfillment of social needs and 2) Mass production; the first characteristic deals with the basic needs of human life. The second characteristic is the non-availability of infrastructure services. According to the business dictionary, economic infrastructure can be defined as "internal facilities of a country that make business activity possible, such as communication and distribution networks, financial institutions and markets, energy supply systems". Economic infrastructure support productive events; this includes roads, bridges, water distribution networks, sewer systems, irrigation plants, etc. Social infrastructure can be broadly defined as the construction and maintenance of facilities that support social services.
Social infrastructures are created to increase social act on economic activity. These being schools and playgrounds, structures for public safety, waste disposal plants, sports area, etc. Core assets have monopolistic characteristics. Investors seeking core infrastructure look for five different characteristics: Income, Low volatility of returns, Inflation Protection, Long-term liability matching. Core Infrastructure incorporates all the main types of infrastructure. For instance. Basic infrastructure refers to main railways, canals, harbors and
The Balkans known as the Balkan Peninsula, is a geographic area in southeastern Europe with various definitions and meanings, including geopolitical and historical. The region takes its name from the Balkan Mountains that stretch throughout the whole of Bulgaria from the Serbian-Bulgarian border to the Black Sea coast; the Balkan Peninsula is bordered by the Adriatic Sea on the northwest, the Ionian Sea on the southwest, the Aegean Sea in the south and southeast, the Black Sea on the east and northeast. The northern border of the peninsula is variously defined; the highest point of the Balkans is 2,925 metres, in the Rila mountain range. The concept of the Balkan peninsula was created by the German geographer August Zeune in 1808, who mistakenly considered the Balkan Mountains the dominant mountain system of Southeast Europe spanning from the Adriatic Sea to the Black Sea; the term of Balkan Peninsula was a synonym for European Turkey in the 19th century, the former provinces of the Ottoman Empire in Southeast Europe.
It had a geopolitical rather than a geographical definition, further promoted during the creation of the Kingdom of Yugoslavia in the early 20th century. The definition of the Balkan peninsula's natural borders do not coincide with the technical definition of a peninsula and hence modern geographers reject the idea of a Balkan peninsula, while scholars discuss the Balkans as a region; the term has acquired a stigmatized and pejorative meaning related to the process of Balkanization, hence the rather used alternative term for the region is Southeast Europe. The word Balkan comes from Ottoman Turkish balkan'chain of wooded mountains'; the origin of the Turkic word is obscure. From classical antiquity through the Middle Ages, the Balkan Mountains were called by the local Thracian name Haemus. According to Greek mythology, the Thracian king Haemus was turned into a mountain by Zeus as a punishment and the mountain has remained with his name. A reverse name scheme has been suggested. D. Dechev considers that Haemus is derived from a Thracian word *saimon,'mountain ridge'.
A third possibility is that "Haemus" derives from the Greek word "haema" meaning'blood'. The myth relates to a fight between the monster/titan Typhon. Zeus injured Typhon with a thunder bolt and Typhon's blood fell on the mountains, from which they got their name; the earliest mention of the name appears in an early 14th-century Arab map, in which the Haemus mountains are referred to as Balkan. The first attested time the name "Balkan" was used in the West for the mountain range in Bulgaria was in a letter sent in 1490 to Pope Innocent VIII by Buonaccorsi Callimaco, an Italian humanist and diplomat; the Ottomans first mention it in a document dated from 1565. There has been no other documented usage of the word to refer to the region before that, although other Turkic tribes had settled in or were passing through the Peninsula. There is a claim about an earlier Bulgar Turkic origin of the word popular in Bulgaria, however it is only an unscholarly assertion; the word was used by the Ottomans in Rumelia in its general meaning of mountain, as in Kod̲j̲a-Balkan, Čatal-Balkan, Ungurus-Balkani̊, but it was applied to the Haemus mountain.
The name is still preserved in Central Asia with the Balkan Daglary and the Balkan Province of Turkmenistan. English traveler John Morritt introduced this term into the English literature at the end of the 18th-century, other authors started applying the name to the wider area between the Adriatic and the Black Sea; the concept of the "Balkans" was created by the German geographer August Zeune in 1808, who mistakenly considered it as the dominant central mountain system of Southeast Europe spanning from the Adriatic Sea to the Black Sea. During the 1820s, "Balkan became the preferred although not yet exclusive term alongside Haemus among British travelers... Among Russian travelers not so burdened by classical toponymy, Balkan was the preferred term"; the term was not used in geographical literature until the mid-19th century because then scientists like Carl Ritter warned that only the part South of the Balkan Mountains can be considered as a peninsula and considered it to be renamed as "Greek peninsula".
Other prominent geographers who didn't agree with Zeune were Hermann Wagner, Theobald Fischer, Marion Newbigin, Albrecht Penck, while Austrian diplomat Johann Georg von Hahn in 1869 for the same territory used the term Südostereuropäische Halbinsel. Another reason it was not accepted as the definition of European Turkey had a similar land extent. However, after the Congress of Berlin there was a political need for a new term and the Balkans was revitalized, but in the maps the northern border was in Serbia and Montenegro without Greece, while Yugoslavian maps included Croatia and Bosnia; the term Balkan Peninsula was a synonym for European Turkey, the political borders of former Ottoman Empire provinces. The usage of the term changed in the end of the 19th and beginning of the 20th century when was embraced by Serbian geographers, most prominently by Jovan Cvijić, it was done with political reasoning as affirmation for Serbian nationalism on the whole territory of the South Slavs, included anthropological and ethnological studies of the South Slavs through which were claimed various nationalistic and racistic theories.
Through such policies and Yugoslavian maps the term was elevated to the modern status of
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