Poland's early history defines the geo-political and religious aspects of Medieval Eastern Europe. This historiographical essay analyzes various scholars' input on what certain aspects of Polish history, regarding the Piast and Jagiellonian Dynasties, had the most impressive impact. By analyzing the importance of religion and conversion in the early Piast realm, we are able to interpret Poland's involvement in the Holy Wars and consequential wars against the Infidel. According to various scholars, Poland's involvement may have been purely political and scarce at most. It is also crucial to look at how each of the most influential Kings ran their kingdom. From politics, to expansion, to regulations on social estates each kind chose a different way to make their mark on the Kingdom of Poland. The Anjou and Jagiellonian Dynasties produced the first female king of Poland. Queen Jadwiga is just one impressive aspect of Polish history. Scholars analyze the important of language and dialects when assuming Polish "citizenship". This criterial is fluid and changes throughout history. Scholars can agree, however, that "Polishness" is one's loyalty and obedience to the King or local Duke and their ability to speak the native tongue. However, even this statement is controversial, as an established local tongue did not occur until much later in time. At this time, Latin, Polish, Lithuanian, Prussian, and other Polish dialects would form into what is now known as modern Polish. This historiographical essay provides insight to the past of what Poland was before it was "Poland". With this information in mind, we can begin to understand why and how history evolves over time.