Prince Stanisław Lubomirski went down in history as an administrator of Warsaw. He introduced permanent street lighting and supported a police unit with his private money. Above all, he wished to care for the health of the Varsovians, wherefore he decided to surround the city, on both sides of the Vistula, with an earthen embankment, initially to protect against the spreading plague epidemic. There were only three crossings in the embankment, by which traffic in and out of the city was controlled. Later, the embankment, reinforced with guns, was used to defend the capital during the Kościuszko Uprising and the November Uprising. Throughout the 19th century, the embankment marked the boundary of the city. By the Act of 1770, Stanisław introduced permanent street names, which greatly facilitated the administration of the city and its functioning, especially facilitating registration and correspondence.