Q: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
The founder of this countrys first dynasty won the Battle of the Irpen River, while during the 1930s this country was ruled by the fascist Iron Wolf Party. This country defeated the Mongols at the Battle of the Blue Waters, while ethnic minorities in this country include the Lipka Tatars. This countrys ruling Gediminid Dynasty included the brothers Algirdas and Kestutius, while the only ruler of this country known as the great was Vytautas. One Grand Duke from this country married Queen Jadwiga, leading to the Union of Krewo and the formation of a commonwealth that was victorious at the Battle of Grunwald. For ten points, name this homeland of Jagiello and one-time partner of Poland, a European country with capital at Vilnius.
A:
History