Poland

 Poland is the 6th most populous and the 6th largest of the European Union's 27 member states. Most of the country is flat, with an average elevation of 173 meters.

 90% of Poles have completed at least secondary education, the highest score in the EU, along with the Czechs, Slovaks, and Slovenes.

 Polish people marry the youngest within the European Union (24 years old for women and 26.5 years old for men in average).

 According to a 2007 UNICEF report on child well-being in rich countries, Poland is the second best of the 25 OECD countries surveyed in terms of "behaviours and risks" (healthy lifestyle, lack of violence), and third best for educational well-being. The same reports also finds that Poland has the lowest pecentage overweight young people (7.1%) and the lowest percentage of teenagers under 15 who had had sexual intercourse (15.1%). However, Poland also had the highest number of young people aspiring to low skilled work (17.1%).

English: Duchy of Warsaw 1809-1815

Location map: Poland (dark green) / European Union...

English: Duchy of Warsaw 1807-1809

 Polish people have the largest households in the European Union.

 Poland is the poorest country in the EU after Bulgaria and Romania in terms of GDP per capita at PPP.

 Poles have won a total of 17 Nobel prizes (more than Japan, China, India or Australia), including four Peace Prizes, and five in Literature.

 The highest mountain in Australia, Mount Kosciuszko, was named after general Tadeusz Kosciuszko (1746-1817), who fought against the Russian Empire, as well as in the American Revolutionary War.

 In ancient times, what is now Poland was inhabited by a multitude of ethnic groups, including various Celtic, Slavic (in the centre and south-east), Baltic (in the north-east) and Germanic (in the west and south-west) tribes.

 The country's first historically documented ruler was Mieszko I (c. 935-992), Duke...