Starting from countries in Europe and America.Around the 19th century, from the aftermath of the exploit their feudal class. Lords and land owners in agriculture make peasants were uprisings against oppression has Mr. slave society began to assemble in the age of social transformation from agriculture towards มอุตสาห annual transactions, making farmers want urban migration as an industry, as a result, people who have emigrated is employed to endure with exploitation in the new format from the capitalist industry is being forced to do slave labor, work hard up to 16-18 hours per day with no weekends, including no safety standards and other benefits.