ferred to as the "Ciudad Nueva" ("new city"). Urban expansion, however, moved very slowly because of the events that followed.
Uruguay's 1830s were dominated by the confrontation between Manuel Oribe and Fructuoso Rivera, the two revolutionary leaders who had fought against the Empire of Brazil under the command of Lavalleja, each of whom had become the cacique of their respective faction. Politics were divided between Oribe's Blancos ("whites"), represented by the National Party, and Rivera's Colorados ("reds"), represented by the Colorado Party, with each party's name taken from the colour of its emblems. In 1838, Oribe was forced to resign the presidency; he established a rebel army and began a long civil war, the Guerra Grande, which lasted until 1851.
The city of Montevideo suffered a siege of eight years between 1843 and 1851, during which it was supplied by sea with English and French support. Oribe, with the support of the then conservative Governor of Buenos Aires Province Juan Manuel de Rosas, besieged the Colorados in Montevideo, where the latter were supported by the French Legion, the Italian Legion, the Basque Legion and battalions from Brazil. Finally, in 1851, with the additional support of Argentine rebels who opposed Rosas, the Colorados defeated Oribe. The fighting, however, resumed in 1855, when the Blancos came to power, which they maintained until 1865. Thereafter, the Colorado Party regained power, which they retained until past the middle of the 20th century.
After the end of hostilities, a period of growth and expansion started for the city. In 1853 a stagecoach bus line was established joining Montevideo with the newly formed settlement of Uni�n and the first natural gas street lights were inaugurated. From 1854 to 1861 the first public sanitation facilities were constructed. In 1856 the Teatro Sol�s was inaugurated, 15 years after the beginning of its construction. By Decree, on December 1861 the areas of Aguada and
