Constitution of 3 May 1791 in the context of "Targowica Confederation"

Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, and borders Lithuania and Russia to the northeast; Belarus and Ukraine to the east; Slovakia and the Czech Republic to the south; and Germany to the west. The territory has a varied landscape, diverse ecosystems, and a temperate climate. Poland is composed of sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 million people, and the fifth largest EU country by land area, covering 312,696 km (120,733 sq mi). The capital and largest city is Warsaw; other major cities include Kraków, Wrocław, Łódź, Poznań, and Gdańsk.

Prehistoric human activity on Polish soil dates to the Lower Paleolithic, with continuous settlement since the end of the Last Glacial Period. Culturally diverse throughout late antiquity, in the early medieval period the region became inhabited by the West Slavic tribal Polans, who gave Poland its name. The process of establishing statehood coincided with the conversion of a pagan ruler of the Polans to Christianity in 966. Under the auspices of the Roman Catholic Church, the dominion became part of the Western world. In 1025, the Kingdom of Poland emerged, and in 1569 it cemented its long-standing association with Lithuania, forming the Polish–Lithuanian Commonwealth. At the time, the Commonwealth was one of Europe's great powers, with an elective monarchy and a uniquely liberal political system. It adopted Europe's first modern constitution in 1791.

Royal elections in Poland (Polish: wolna elekcja, lit. 'free election') were the elections of individual kings, rather than dynasties, to the Polish throne. Based on traditions dating to the very beginning of the Polish statehood, strengthened during the Piast and Jagiellon dynasties, they reached their final form in the Polish–Lithuanian Commonwealth period between 1572 and 1791. The "free election" was abolished by the Constitution of 3 May 1791, which established a constitutional-parliamentary monarchy.

The Royal Castle in Warsaw (Polish: Zamek Królewski w Warszawie [ˈzamɛk kruˈlɛfskʲi v varˈʂavjɛ]) is a state museum and a national historical monument, which formerly served as the official royal residence of several Polish monarchs. The personal offices of the king and the administrative offices of the royal court were located in the Castle from the 16th century until the final partition of Poland in 1795. Situated in the Castle Square, at the entrance to the Old Town, the Royal Castle holds a significant collection of Polish and European art.

The Royal Castle witnessed many notable events in Poland's history; the Constitution of 3 May 1791, first of its type in Europe and the world's second-oldest codified national constitution, was drafted here by the Four-Year Parliament. The edifice was redesigned into a neoclassical style following the partitions of Poland. Under the Second Polish Republic (1918–1939), it was the seat of the Polish head of state and president. The Second World War brought complete destruction to the building; in September 1939 it was targeted and ignited by Luftwaffe fighter aircraft, and then detonated by the Nazis after the failed Warsaw Uprising in 1944.

Polish Americans (Polish: Polscy Amerykanie) are Americans who are of full or partial Polish origin. Polish settlement in the United States started in the mid-19th century. The flow of people has fluctuated over time depending upon conditions in Poland and the United States. The Polish American population is concentrated around the Great Lakes and the Mid-Atlantic. Illinois, New York, Michigan, and Pennsylvania are the states with the largest populations though none of them contain more than 15% of the Polish American population.

Poland has a long history of republicanism going back to the establishment of the first national legislature, the Sejm of the Kingdom of Poland, in 1386. This legislature became bicameral in 1493. Poland and Lithuania formed a federated state in 1569 with the establishment of the Polish-Lithuanian Commonwealth. In this commonwealth of two nations there was a joint legislature called the General Sejm. An elective monarchy was started in 1572. Influenced by the Constitution of the United States, the commonwealth enacted a written constitution called the Constitution of 3 May 1791.

The Polish–Russian War of 1792 (also, War of the Second Partition, and in Polish sources, War in Defence of the Constitution) was fought between the Polish–Lithuanian Commonwealth on one side, and the Targowica Confederation (conservative nobility of the Commonwealth opposed to the new Constitution of 3 May 1791) and the Russian Empire under Catherine the Great on the other.

The war took place in two theaters: a northern in Lithuania and a southern in what is now Ukraine. In both, the Polish forces retreated before the numerically superior Russian forces, though they offered significantly more resistance in the south, thanks to the effective leadership of Polish commanders Prince Józef Poniatowski and Tadeusz Kościuszko. During the three-month-long struggle several battles were fought, but no side scored a decisive victory. The largest success of the Polish forces was the defeat of one of the Russian formations at the Battle of Zieleńce on 18 June; in the aftermath of the battle the Polish highest military award, Virtuti Militari, was established. The Russians' greatest success in this war was the Battle of Mir on 11 June (O.S. 31 May). The war ended when the Polish King Stanisław August Poniatowski decided to seek a diplomatic solution, asked for a ceasefire with the Russians and joined the Targowica Confederation, as demanded by the Russian Empire.