• the earliest known Polish language sentence comes from the Book of Henryków, a 13th-century chronicle of a Cistercian abbey?
• the main languages of Renaissance in Poland were Polish and Latin, and that the leading Polish poet of that period, Jan Kochanowski, is regarded as a great Slavic poet?
• there are seven dialectal groups of the Polish language, each primarily associated with a certain geographical region?
• the children's anime series The Littl' Bits has aired in Japanese, English, Spanish, Polish, German, and Italian?
• the Lwów dialect was one of the first dialects of the Polish language to be properly classified?
• Szare Szeregi (Polish for "Grey Ranks") was a codename for the underground Zwiazek Harcerstwa Polskiego (Polish Scouting Association) during World War II?
• the Jakub Wujek Bible served as the main Catholic Bible translation into Polish for more than three centuries?
• "Spieprzaj dziadu!" (Polish for "Piss off, old man!"), said by current Polish President Lech Kaczynski, has become one of the most famous phrases in modern Poland?

Facts on topics related to Polish language

Czech language

• fairy-like insect people feature in the classic Czech children's book Broučci by Jan Karafiát?
• the villagers of the Romanian village of Bigar largely speak Czech rather than Romanian?

Silesia

• counter-reformation in Silesia was stopped by the Treaty of Altranstädt in 1707?
• Silesian socialist politician Józef Biniszkiewicz died at Buchenwald concentration camp during World War II?
• Bolko II of Świdnica was the last independent duke of the Piast dynasty in Silesia?
• Jerzy Ziętek, a Silesian Insurrectionist in his youth, later became a Polish communist and an important regional politician from Silesia in the People's Republic of Poland?
• a part of Rawa River in Silesia is currently so polluted it is officially classified as a sewage channel?
• the Silesian-born scholar Heimann Hariton Tiktin, one of the founders of modern Romanian linguistics was initially destined to become a rabbi?
• the Ślężanie were a tribe of West Slavs of the Polish group, inhabiting territories of Silesia, which is named after them, near Ślęża mountain and river, up to the area of modern city of Wrocław?
• the German Social Democratic Party in Poland was formed in 1922 by the merger of Silesian branches of the German SPD, USPD and the Austrian SDAP?

Saxony

• as a result of the Saxon Brother War and the subsequent divisions of land, Saxony was no longer one of the most powerful German states?
• the Division of Altenburg in Saxony led to a war between two brothers in 1446 known as the Bruderkrieg, or Saxon Brother War?
• the first railway in Germany, the Bayerische Ludwigsbahn, was originally mostly horse-hauled because of the high cost of importing coal from Saxony?
• two steam trains were involved in a head-on collision on the Lößnitzgrundbahn heritage railway in Saxony, Germany, on 12 September 2009?