This paper describes the situation from the beginning of the industrial revolution when levels of urbanisation were dependent on geography and the historical situation and when the general level of urbanisation was low, through the nineteenth century in which agricultural productivity and industrialisation determined the levels of urbanisation. This period represents a dramatic increase in the levels of urbanisation during which the present urban structures were put into place. A comparative econometric study, finds that economic growth pushed urbanisation, with industrialisation being the most important factor for Europe and agricultural productivity being quite important for the European settled countries. Other important factors are found to be, trade, total population, topography, and form of industrialisation. Railroad networks more or less extensive than normal were not found to be influential.