Task: Text Categorization
Input (English): One legendary figure in this country's history was a wheelwright who founded the Piast dynasty. The Nihil novi was a 1505 act passed by its parliament, the sejm, and the Confederation of Targowica invited a Russian invasion after the adoption of a liberal constitution. One battle in this country saw its king ally with Grand Duke Vytautas to repulse the Teutonic Knights and took place at Grunwald. Tadeusz Kosciuszko led this nation's resistance to a Russian deal with Austria to partition this nation. More recently this country was home to the trade union Solidarity, led by Lech Walesa. For 10 points, name this European nation that was home to the Warsaw Ghetto.
Output (English): History