How long was the average workday during the early years of the industrial revolution?
a. eight to ten hours
b. ten to twelve hours
c. twelve to fourteen hours
d. fourteen to sixteen hours

The correct option is D

As a result of the agricultural and demographic revolution, there was a massive exodus of peasants to the cities; the old farmer became an industrial worker. The industrial city increased its population as a result of the natural growth of its inhabitants and the arrival of this new human contingent. The lack of rooms was the first problem suffered by this socially marginalized population; He had to live in small spaces without minimal comforts and lacking in hygiene. Added to this were days of work, which reached more than fourteen hours a day, in which men, women and children participated with miserable salaries, and lacking legal protection against the arbitrariness of the owners of the factories or production centers.

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porter is writing economic history because he is focusing on the cost of developing vaccines.