Answer: converted Slavs to Christianity (especially western Slavs).
Explanation: founder of Bohemian (Czech) first dynasty (Premyslids) Borivoj received Christianity from their hands in Great Moravia. He was the first Czech duke who successfuly introduced Christianity to the Czech lands. Today they both are remembered in the Czech rep. because there is an official feast of Cyril and Methodius (July, 5). Cyril was older of both brothers and died in Rome (869 AD), younger Methodius became archbishop and died in Great Moravia. Both were of Greek origin.
Policles's actions advance the story's plot by pretending something that he is not. His intentions are to cause trouble between the two tribes and does this by tricking the two tribes that there is a conflict between them. The theme of the story revolves around factions and race.
The World War II played a role int he decolonization of Southeast Asia when Japan took Southeast Asian lands from Europe in the World War II. Japan made this move in order to show to the Europeans that they, Europeans were not invincible.