In the early Nineteenth Century (1803-1805), is drawn a plan of the central area of Bucharest, from Mihai Voda area to bridge the current Union Square (Piata Unirii). This plan was made due to disputes arising between riparian Dambovi?a on artificial watercourse diversion. The city plan from 1806, made by the General Harting (Russian commander), is entitled "The Plan of Bucharest camp situation, made in 1807 by the civil engineering department attached to the army under General Michelson cavalry." The plan has a scale of 1: 16800. Moritz von Ott prepares a plan (dated 23 ianuarie1823) amid the revolutionary events of 1821. In 1828 appears "The Plan of Bucharest and its surroundings, built by the lieutenant of the General Staff and surveying Serskan? I. Kuzmin, in 1828, from August 28 until November 1." This is the first representation of the division of Bucharest in 5 sectors (5 colors): 1. Targului (color red, the center); 2. Mogosoaia (yellow color); 3. Targul de Afara (black color); 4. Bro?teni (blue color); 5. Gorgani (green color). The plan made in 1834 by the chief architect Sanejouand (12 sheets) was prepared together with a systematic plan of the city, but not preserved until today. The Bucharest city plan drawn up in 1842 by colonel Vladimir of Blaremberg, is published in the Annex to the Romanian Land Yearbook. The Borroczyn Plan (1846 - 1852) is the first detailed plan of the city, appeared in 100 sheets. In the mid-nineteenth century (1856), Austrian Marshal Fligely shall mapping, at the request of the Wallachian Prince Barbu ?tirbei, the maps of the Oltenia and Muntenia. Subsequently, the map was reprinted in Bucharest in 1864, under the title Map of Southern Romania, 1:57000 by Szatmary, especially employed by Prince Al. I. Cuza for this work. Demetrius Pappasoglu, Romanian Army officer, drawn between 1871 - 1875, several plans of the city: one general and the other five sectors - colors. In 1879, it published the first plan to be teaching material in schools. During 1890 - 1900, start the systematic publication of cadastral plans of the town. At the end of the century (1899), Geographic Institute of the Army are directly involved in the city cadastre and edit the complete plan until then (scale 1:20000), which will form the basis of many later published plans.