Wrocław is a city in western Poland and the largest city in the historical region of Silesia. It lies on the banks of the River Oder in the Silesian Lowlands of Central Europe 350 kilometres from the Baltic Sea to the north and 40 kilometres from the Sudeten Mountains to the south; the population of Wrocław in 2018 was 639,258, making it the fourth-largest city in Poland and the main city of the Wrocław agglomeration. Wrocław is the historical capital of Lower Silesia. Today, it is the capital of the Lower Silesian Voivodeship; the history of the city dates back over a thousand years, its extensive heritage combines all religions and cultures of Europe. At various times, it has been part of the Kingdom of Poland, Kingdom of Bohemia, Kingdom of Hungary, Habsburg Monarchy and Germany. Wrocław became part of Poland again in 1945, as a result of the border changes after the Second World War, which included a nearly complete exchange of population. Wrocław is a university city with a student population of over 130,000, making it one of the most youthful cities in the country.
Since the beginning of the 20th century, the University of Wrocław Breslau University, produced 9 Nobel Prize laureates and is renowned for its high quality of teaching. Wrocław is classified as a Gamma-global city by GaWC, it was placed among the top 100 cities in the world for the quality of life by the consulting company Mercer and in the top 100 of the smartest cities in the world in the IESE Cities in Motion Index 2017 report. The city hosted the Eucharistic Congress in the Euro 2012 football championships. In 2016, the city was a European Capital of the World Book Capital. In this year, Wrocław hosted the Theatre Olympics, World Bridge Games and the European Film Awards. In 2017, the city was the host of the World Games; the city's name was first recorded as "Wrotizlava" in the chronicle of German chronicler Thietmar of Merseburg, which mentions it as a seat of a newly installed bishopric in the context of the Congress of Gniezno. The first municipal seal stated. A simplified name is given, as Wrezlaw, Prezla or Breslaw.
The Czech spelling was used in Latin documents as Vratislavia. At that time, Prezla was used in Middle High German. In the middle of the 14th century, the Early New High German form of the name, began to replace its earlier versions; the city is traditionally believed to be named after Wrocisław or Vratislav believed to be named after Duke Vratislaus I of Bohemia. It is possible that the city was named after the tribal duke of the Silesians or after an early ruler of the city called Vratislav; the city's name in various other languages is: Hungarian: Boroszló, Czech: Vratislav, German: Breslau, Hebrew: ורוצלב, Yiddish: ברעסלוי, Silesian German: Brassel, Latin: Vratislavia or Budorgis or Wratislavia. The city's name in other languages is available at the list of names of European cities. Persons born or living in the city are known as "Vratislavians". In ancient times at or near Wrocław was a place called Budorigum, it has been mapped to Claudius Ptolemy's map of AD 142–147. The city of Wrocław originated at the intersection of two trade routes, the Via Regia and the Amber Road.
Settlements in the area existed during the migration period. A Slavic tribe Ślężans erected on Ostrów Tumski a gord; the city was first recorded in the 10th century as Vratislavia, the Bohemian duke Vratislaus I founded here a Bohemian stronghold. Vratislavia was derived from the duke's name Vratislav. In 985, Duke Mieszko I of Poland conquered Silesia including Wrocław; the town was mentioned explicitly in the year 1000 AD in connection with a founding of a bishopric during the Congress of Gniezno. The medieval chronicle, Gesta principum Polonorum, written by Gallus Anonymus in 1112–1116, named Wrocław, along with Kraków and Sandomierz, as one of the three capitals of the Polish Kingdom. During Wrocław's early history, the control over it changed hands between Bohemia, the Kingdom of Poland, after the fragmentation of the Kingdom of Poland, the Piast-ruled duchy of Silesia. One of the most important events during this period was the foundation of the Diocese of Wrocław by the Polish Duke Bolesław the Brave in 1000.
Along with the Bishoprics of Kraków and Kołobrzeg, Wrocław was placed under the Archbishopric of Gniezno in Greater Poland, founded by Pope Sylvester II through the intercession of the Emperor Otto III in 1000, during the Congress of Gniezno. In the years 1034–1038 the city was affected by Pagan reaction in Poland; the city became a commercial centre and expanded to Wyspa Piasek, to the left bank of the River Oder. Around 1000, the town had about 1,000 inhabitants. In 1109 during the Polish-German war, Prince Bolesław III Wrymouth defeated the King of Germany Henry V at the Battle of Hundsfeld, stopping the German march into Poland. By 1139, a settlement belonging to Governor Piotr Włostowic was built, another was founded on the left bank of the River Oder, near the present seat of the University. While the city was Polish, there were communities of Bohemians, Jews and Germans. In the 13th century, Wrocław was the political centre of the divided Polish kingdom. In April 1241, during the First Mongol invasion of Poland the city was abandoned by the inhabitants and burned for strategic reason
Poland the Republic of Poland, is a country located in Central Europe. It is divided into 16 administrative subdivisions, covering an area of 312,696 square kilometres, has a temperate seasonal climate. With a population of 38.5 million people, Poland is the sixth most populous member state of the European Union. Poland's capital and largest metropolis is Warsaw. Other major cities include Kraków, Łódź, Wrocław, Poznań, Gdańsk, Szczecin. Poland is bordered by the Baltic Sea, Russia's Kaliningrad Oblast and Lithuania to the north and Ukraine to the east and Czech Republic, to the south, Germany to the west; the establishment of the Polish state can be traced back to AD 966, when Mieszko I, ruler of the realm coextensive with the territory of present-day Poland, converted to Christianity. The Kingdom of Poland was founded in 1025, in 1569 it cemented its longstanding political association with the Grand Duchy of Lithuania by signing the Union of Lublin; this union formed the Polish–Lithuanian Commonwealth, one of the largest and most populous countries of 16th and 17th century Europe, with a uniquely liberal political system which adopted Europe's first written national constitution, the Constitution of 3 May 1791.
More than a century after the Partitions of Poland at the end of the 18th century, Poland regained its independence in 1918 with the Treaty of Versailles. In September 1939, World War II started with the invasion of Poland by Germany, followed by the Soviet Union invading Poland in accordance with the Molotov–Ribbentrop Pact. More than six million Polish citizens, including 90% of the country's Jews, perished in the war. In 1947, the Polish People's Republic was established as a satellite state under Soviet influence. In the aftermath of the Revolutions of 1989, most notably through the emergence of the Solidarity movement, Poland reestablished itself as a presidential democratic republic. Poland is regional power, it has the fifth largest economy by GDP in the European Union and one of the most dynamic economies in the world achieving a high rank on the Human Development Index. Additionally, the Polish Stock Exchange in Warsaw is the largest and most important in Central Europe. Poland is a developed country, which maintains a high-income economy along with high standards of living, life quality, safety and economic freedom.
Having a developed school educational system, the country provides free university education, state-funded social security, a universal health care system for all citizens. Poland has 15 UNESCO World Heritage Sites. Poland is a member state of the European Union, the Schengen Area, the United Nations, NATO, the OECD, the Three Seas Initiative, the Visegrád Group; the origin of the name "Poland" derives from the West Slavic tribe of Polans that inhabited the Warta river basin of the historic Greater Poland region starting in the 6th century. The origin of the name "Polanie" itself derives from the early Slavic word "pole". In some languages, such as Hungarian, Lithuanian and Turkish, the exonym for Poland is Lechites, which derives from the name of a semi-legendary ruler of Polans, Lech I. Early Bronze Age in Poland begun around 2400 BC, while the Iron Age commenced in 750 BC. During this time, the Lusatian culture, spanning both the Bronze and Iron Ages, became prominent; the most famous archaeological find from the prehistory and protohistory of Poland is the Biskupin fortified settlement, dating from the Lusatian culture of the early Iron Age, around 700 BC.
Throughout the Antiquity period, many distinct ancient ethnic groups populated the regions of what is now Poland in an era that dates from about 400 BC to 500 AD. These groups are identified as Celtic, Slavic and Germanic tribes. Recent archeological findings in the Kujawy region, confirmed the presence of the Roman Legions on the territory of Poland; these were most expeditionary missions sent out to protect the amber trade. The exact time and routes of the original migration and settlement of Slavic peoples lacks written records and can only be defined as fragmented; the Slavic tribes who would form Poland migrated to these areas in the second half of the 5th century AD. Up until the creation of Mieszko's state and his subsequent conversion to Christianity in 966 AD, the main religion of Slavic tribes that inhabited the geographical area of present-day Poland was Slavic paganism. With the Baptism of Poland the Polish rulers accepted Christianity and the religious authority of the Roman Church.
However, the transition from paganism was not a smooth and instantaneous process for the rest of the population as evident from the pagan reaction of the 1030s. Poland began to form into a recognizable unitary and territorial entity around the middle of the 10th century under the Piast dynasty. Poland's first documented ruler, Mieszko I, accepted Christianity with the Baptism of Poland in 966, as the new official religion of his subjects; the bulk of the population converted in the course of the next few centuries. In 1000, Boleslaw the Brave, continuing the policy of his father Mieszko, held a Congress of Gniezno and created the metropolis of Gniezno and the dioceses of Kraków, Kołobrzeg, Wrocław. However, the pagan unrest led to the transfer of the capital to Kraków in 1038 by Casimir I the Restorer. In 1109, Prince Bolesław III Wrymouth defeated the King of Germany Henry V at the Battle of Hundsfeld, stopping the Ge