Goryeo (고려; 高麗; Koryŏ; ) was a Korean kingdom founded in 918, during a time of national division called the Later Three Kingdoms period, that unified and ruled the Korean Peninsula until 1392. Goryeo achieved what has been called a "true national unification" by Korean historians as it not only unified the Later Three Kingdoms but also incorporated much of the ruling class of …

Vytautas (c. 1350 – 27 October 1430), also known as Vytautas the Great (Lithuanian: Vytautas Didysis (help · info), Belarusian: Вітаўт, Vitaŭt, Polish: Witold Kiejstutowicz, Witold Aleksander or Witold Wielki Ruthenian: Vitovt, Latin: Alexander Vitoldus, Old German: Wythaws or Wythawt) from the 15th century onwards, was a ruler of the Grand Duchy of Lithuania.