This thesis is a comparative analysis of the chronological patterns of utopias, urbanism, and technology that have prevailed throughout European and American history. It analyzes a wide range of carefully selected utopian concepts, and compares them with the dominant urbanistic and technological events existing at similar points in time. The result of this investigation is a theory that utopian activity has responded to urbanistic and technological trends in a recurring sequence, and that this pattern continues up to the nineteenth century. In the nineteenth and twentieth centuries, the recurring pattern becomes complex and less defined because of an increase in utopian concepts. Based on this theory, the thesis concludes that utopian activity has responded to the prevailing urbanistic trends and technological changes of society and-the appearance of utopian activity has signaled society of important changes.