implementation of the Oder-Neisse line according to the post-war Potsdam Agreement, it passed to Poland and was granted a city charter. It is therefore the only municipality in Poland which until 1945 had not been part of Prussia (but of the Free State of Saxony). From 1945 to 1947 the town was renamed Rychwald followed by the current name. The town used to be connected via narrow gauge railway lines opened in 1884 to Zittau and to the Bohemian border, where it was linked with the Frýdlant–Heřmanice Railway in 1900. Cross border service discontinued in 1945, and the railway line was closed in 1961. On August 8, 2010, the Miedzianka stream flooded the entire central part of the town, causing heavy damage and destroying several historic buildings. The cause of the flooding was extremely heavy rain and the resulting swelling of the river Miedzianka. Two people died. Economy Today Bogatynia is one of the richest towns per capita in Poland, due to its two principal enterprises: the Turów Coal Mine, a large open-pit on the grounds of the former Rybarzowice village, and the associated thermal power station, Elektrownia Turów, operated by the Polska Grupa Energetyczna, the third-largest of the country. The word bogaty in Polish describes a rich or wealthy person - a calque from the town's original German name, Reichenau (reich: "rich"). International relations See twin towns of Gmina Bogatynia. Notable residents Johann Hübner (1668–1731), German geographer and scholar Johann Gottfried Schicht, composer (1753–1823) Ernst Friedrich Apelt, philosopher (1812–1859) Werner Dittrich (born 1937), German weightlifter Gerhard Richter (born 1932), German artist References External links Old postcards of Reichenau/Bogatynia at www.werkowski.eu Cities and towns in Lower Silesian Voivodeship Zgorzelec County