Poland

Poland, whose official name is the Republic of Poland, sits in Central Europe. Its northern border reaches the Baltic Sea, while the Sudetes and Carpathian Mountains define its southern edge. To the northeast it shares borders with Lithuania and Russia; Belarus and Ukraine lie to the east; Slovakia and the Czech Republic to the south; and Germany to the west. The country features a mix of landscapes, multiple ecosystem types, and a temperate climate. It is divided into sixteen voivodeships. With over 38 million residents, Poland ranks as the fifth most populous member of the European Union, and it is also the fifth largest EU state by land area, spanning 312,696 square kilometers. Warsaw serves as both the capital and the largest city; other major urban centers include Kraków, Wrocław, Łódź, Poznań, and Gdańsk.

Human activity in what is now Poland goes back to the Lower Paleolithic, and people have lived there continuously since the end of the Last Glacial Period. During late antiquity the area was culturally varied, and by the early medieval period it was home to the West Slavic tribe known as the Polans—the source of the country’s name. The formation of a state began when a pagan Polan ruler converted to Christianity in 966 under the Roman Catholic Church. The Kingdom of Poland was established in 1025, and in 1569 it formalized a long-standing union with Lithuania, creating the Polish–Lithuanian Commonwealth. At its height, this Commonwealth ranked among Europe’s great powers, featuring an elective monarchy and an unusually liberal political system; it adopted Europe’s first modern constitution in 1791.

After the prosperous Polish Golden Age ended, neighboring states partitioned the country in the late 18th century. Poland regained its independence at the close of World War I in 1918, forming the Second Polish Republic, which won several conflicts during the interwar period. In September 1939, Germany and the Soviet Union both invaded Poland, triggering World War II. That war brought the Holocaust, millions of Polish casualties, and major shifts in borders and demographics. Forced into the Eastern Bloc during the Cold War, the Polish People’s Republic became a signatory of the Warsaw Pact. The Solidarity movement emerged in 1980 and helped bring down the Iron Curtain; the communist government was dissolved, and in 1989 Poland became the first communist country to reestablish itself as a liberal democracy, followed by free elections.

Poland operates as a parliamentary republic with a bicameral legislature made up of the Sejm and the Senate. It is considered a middle power and a regional power, with a developed market and a high-income economy. By nominal GDP, it ranks 20th worldwide and sixth in the European Union; by PPP-adjusted GDP, it is fifth in the EU. The country provides free university education and universal health care. It boasts 18 UNESCO World Heritage Sites, over 100 Historic Monuments, and 23 national parks. Poland is a founding member of the United Nations and belongs to the Council of Europe, the World Trade Organization, the OECD, NATO, and the EU (including the Schengen Area).

The native Polish name for the country is Polska. This name is thought to come from the Polans, a West Slavic tribe that lived in the Warta River basin of what is now Greater Poland between the 6th and 8th centuries CE. The tribe’s name derives from the Proto-Slavic noun pole, meaning field, which itself traces back to the Proto-Indo-European word pleh₂-, indicating flatland. This etymology reflects the region’s topography and the flat landscape of Greater Poland. During the Middle Ages, the Latin form Polonia was widely used across Europe.

An older, alternative name for Poland is Lechia, and its root syllable remains official in several languages, including Hungarian, Lithuanian, and Persian. This exonym may come from either Lech, a legendary ruler of the Lechites, or from the Lendians, a West Slavic tribe that lived on the southeastern edge of Lesser Poland. The Lendians’ name originates from the Old Polish word lęda (plain). In medieval chronicles, both Lechia and Polonia were used interchangeably to refer to Poland.

The first Stone Age archaic humans and Homo erectus reached what would become Poland around 500,000 years ago, but harsh climate conditions prevented permanent settlements. Homo sapiens and anatomically modern humans arrived with the climatic shift at the end of the Last Glacial Period (around 10,000 BC), making Poland habitable. Neolithic excavations show broad development during that era: the earliest evidence of European cheesemaking (5500 BC) was found in Polish Kuyavia, and the Bronocice pot, dating to 3400 BC, bears the earliest known depiction of what may be a wheeled vehicle.

During the Bronze Age and Early Iron Age (1300 BC–500 BC), population density increased, palisaded settlements (gords) were built, and the Lusatian culture expanded. A key archaeological site from Poland’s protohistory is the fortified settlement at Biskupin, linked to the Lusatian culture of the Late Bronze Age (mid-8th century BC).

Throughout antiquity (400 BC–500 AD), many distinct groups lived in the area of present-day Poland, including Celtic, Scythian, Germanic, Sarmatian, Baltic, and Slavic tribes. Archaeological finds also confirm the presence of Roman legions sent to protect the amber trade. The Polish tribes emerged after the second wave of the Migration Period, around the 6th century AD; they were Slavs.