Casimir III, also known as Casimir the Great, was one of Polands most productive kings. His greatest accomplishments throughout his reign were the progress and the reforms within domestic Poland. When first elected as Polands king, there was turmoil going on within Polands political aspects. They were on the brink of a war; however, Casimir knew that if Poland were to enter into a war, that they would be defeated instantaneously. Instead, with the countries that wished to wage war, Casimir helped create a peace treaty that divided up land to the opposing sides, in an effort to avoid a possible war. By saving Poland from a possibly devastating war, he was known then on as a great king, one who would truly better Poland. By doing this, Casimir showed he was to rule for Poland and for the people of Poland, to make their lives easier. This was the beginning of Casimirs great reign. Under his leadership, Casimir had marshes drained and forests cleared in order to promote better agriculture for his country. The people whom he ruled were grateful for his sincere interest with Polands economic standpoint, and that he wanted to see all of his people happy. He had roads, bridges and trading posts built while he was king to further Polands economy. He felt that in order for Poland to become a strong country, he had to start from the basic level and work his way up, improving things as needed. By starting with the basics, he was able to create a foundation on which to stand Poland, in case anything was to happen. He made sure that at the very least, Poland would be able to survive on its own.What was also needed was defense against a possible attack. Casimir then proceeded to build around forty castles, where, in case of emergency, his subjects could stay and would be protected by the Polish army, which would be divided among the many castles. In building these forts, Casimir displayed to his subjects that he would do everything in his po...