2018 1-4955-0637-1 This study challenges all of Petrie's assertions that Irish Round towers were simply places for Irish Monks to store their valuables and proposes a radically new understanding of the Irish round tower. It is guided by Martin Carver's hypothesis regarding early medieval monumentality, and by his three essential questions - 'Why that? Why there? Why then?' - this study deploys historic, annalistic, architectural, literary, and linguistic evidence to establish a secular origin and function for the towers and to situate them as products of the period between the tenth and twelfth centuries.