While Vijayabahu’s victory and shifting of kingdoms to the more strategic Polonnaruwa is considered significant, the real „Hero of Polonnaruwa“ of the history books is actually Parakramabahu I. It was his reign that is considered the Golden Age of Polonnaruwa. Trade and agriculture flourished under the patronage of the king, who was so adamant that no drop of water falling from the heavens was to be wasted and each was to be used toward the development of the land. Hence, irrigation systems that are far superior to those of the Anuradhapura Age were constructed during Parakramabahu’s reign – system which to this day supply the water necessary for paddy cultivation during the scorching dry season in the east of the country. The greatest of these systems is the Parakrama Samudra or the Sea of Parakrama. It is of such a width that it is impossible to stand upon one shore and view the other side. It also encircles the main city like a ribbon, being both a moat against intruders and the lifeline of the people in times of peace. The Kingdom of Polonnaruwa was completely self-sufficient during King Parakramabahu’s reign.