Industry is the production of goods or related services within an economy. The major source of revenue of a group or company is the indicator of its relevant industry. When a large group has multiple sources of revenue generation, it is considered to be working in different industries. Manufacturing industry became a key sector of production and labour in European and North American countries during the Industrial Revolution, upsetting previous mercantile and feudal economies. This came through many successive rapid advances in technology, such as the production of steel and coal.
The importance of the culture industry in the spiritual constitution of the masses is no dispensation for reflection on its objective legitimation, its essential being, least of all by a science which thinks itself pragmatic.
Theodor Adorno Culture Industry Reconsidered (1963).
Industry is the vis motrix of husbandry, and therefore an ancient English writer observes, "that a single uncultivated acre is a real physical evil in any state."
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