Over the last 200 years, Prague has grown from 155,000 people to 1,309,000 and from 800 hectares to a total area of 49,605 hectares. In the last 100 years alone, their population has more than doubled. Significant differences can be seen the maps from the early 19th century compared to the latest ones, which show the development of industrial suburbs such as Karlín, Smíchov, Libeň or the establishment of the Malešice-Hostivař industrial area and a number of housing projects.