Sweatshops are workplaces where workers are employed at low wages and under unhealthy or oppressive conditions. They are characterized by poor working conditions, unfair wages, excessive hours of labor, and unsafe or unhealthful workplace conditions. Certain social and economic conditions are necessary for sweatshops to be possible, including a mass of unskilled and unorganized laborers, management systems that neglect the human factor of labor, and lack of accountability for poor working conditions or failure of governments to intervene on behalf of workers. The term "sweatshop" was first used in the late 19th century to describe aspects of the tailoring trade, but sweatshop conditions exist in other industries as well. Some illegal working conditions include poor ventilation, little to no breaks, inadequate work space, insufficient lighting, and more. Sweatshops are often located in poor nations with weak labor laws and little government control, and workers risk losing their jobs if they attempt to challenge their rights or work conditions. Although legislation has controlled sweatshops in most developed countries, they still operate in many countries in Asia, where large numbers of people are engaged in homework and in small factory shops.