During the Industrial Revolution, children as young as four were employed in production factories with dangerous, and often fatal, working conditions. Based on this understanding of the use of children as labourers, it is now considered by wealthy countries to be a human rights violation, and is outlawed, while some poorer countries may allow or tolerate child labour. Child labour can also be defined as the full-time employment of children who are under a minimum legal age.
The Victorian era became notorious for employing young children in factories and mines and as chimney sweeps. Child labour played an important role in the Industrial Revolution from its outset, often brought about ...view middle of the document...
In the early 1900s, thousands of boys were employed in glass making industries. Glass making was a dangerous and tough job especially without the current technologies. The process of making glass includes intense heat to melt glass (3133°F). When the boys are at work, they are exposed to this heat. This could cause eye trouble, lung aliments, heat exhaustion, cut, and burns. Since workers were paid by the piece, they had to work productively for hours without a break. Since furnaces had to be constantly burning, there were night shifts from 5:00 P.M. to 3:00 A.M. Many factory owners preferred boys under 16 years of age.
Children as young as three were put to work. A high number of children also worked as prostitutes. Many children (and adults) worked 16 hour days. As early as 1802 and 1819 Factory Acts were passed to regulate the working hours of workhouse children in factories and cotton mills to 12 hours per day. These acts were largely ineffective and after radical agitation, by for example the "Short Time Committees" in 1831, a Royal Commission recommended in 1833 that children aged 11–18 should work a maximum of 12 hours per day, children aged 9–11 a maximum of eight hours, and children under the age of nine were no longer permitted to work. This act however only applied to the textile industry, and further agitation led to another act in 1847 limiting both adults and children to 10 hour working days.
An estimated 1.7 million children under the age of fifteen were employed in American industry by 1900.
In 1910, over 2 million children in the same age group were employed in the United States. This included children who rolled cigarettes, engaged in factory work, worked as doffers in textile mills, worked in coal mines and were employed in canneries. Lewis Hine's photographs of child laborers in the 1910s powerfully evoked the plight of working children in the American south. Hines took these photographs between 1908 and 1917 as staff photographer for the National Child Labor Committee.
Proposals to regulate child labor began as early as 1786. 
An eight year old boy making his livelihood by showing a playful monkey in a running train in India in 2011.
See also: Children's rights
Child labour is still common in some parts of the world, it can be factory work, mining, prostitution, quarrying, agriculture, helping in the parents' business, having one's own small business (for example selling food), or doing odd jobs. Some children work as guides for tourists, sometimes combined with bringing in business for shops and restaurants (where they may also work as waiters). Other children are forced to do tedious and repetitive jobs such as assembling boxes, polishing shoes, stocking a store's products, or cleaning. However, rather than in factories and sweatshops, most child labour occurs in the informal sector, "selling many things on the streets, at work in agriculture or hidden away in...