Put simply, zoning, in a planning or land use context, is the classification of a community's land into districts with different regulations for its use. Zoning and other methods of land use control have evolved with the primary goal of promoting the health, safety, and well-being of residents while minimizing the negative impacts of an activity or use on others. Zoning is actually a legislative process whereby a community prioritizes the values ​​associated with the land, development and associated activities. A zoning system generally includes map or plan elements that define areas where similar regulations apply and a textual ordinance, code, or law, usually legislated relatively locally, composed of definitions and procedures applicable to the zoning process. Social and technological advances have prompted an evolution in the perception of the activities and development patterns that zoning regulations have sought to address. Many of the first land use controls were initiated in response to specific problems experienced by cities during periods of accelerated population growth and rapid industrialization. Public health problems exacerbated by extreme population density and industrial pollution have been a primary factor in controls over the form of residential development, the promotion of public safety and sanitation infrastructure, and the location of industrial activities. Historically, zoning controls fall into three general categories. The first is regulating the location of certain businesses, such as operating a slaughterhouse or smelter. For aesthetic, health and safety reasons, it may be necessary to separate these businesses from areas that primarily serve as residences. A second... half of the document... finding industrial development and activity in its jurisdiction. In an effort to accomplish this goal, Euclid passed a zoning ordinance regulating and limiting the potential uses of 68 acres of land owned by the Ambler Realty Company within the village. Ambler sued, arguing that the regulation reduced the value of his property and was therefore unconstitutional. The Court found that Euclid had rightly used its police powers and found that the efforts were intended to promote the maintenance of a community's character and that regulating the location of certain land uses within a community is a legitimate interest of the government. Although the Euclid decision was never overturned, cases at all levels of the judicial hierarchy have challenged and more narrowly defined the relationship between public interests and private rights regarding land use.