Farm automation also put draft horses out of work.
My case is brittian in the early 1800s, which had a population of about 40 million people and 4 million draft horses.
A draft horse did the manual labor of about four men, making them worth about 16 million agrarian jobs, and they were also put out of work. Horses, of course, aren't horribly adaptive and don't revolt when you keep them from reproducing, and so over the century they virtually disappeared with the jobs they lost.
Furthermore, if you consider the move in the early 1900s from a six day to a five day work week, that's a lot more human jobs that have never been replaced.
My case is brittian in the early 1800s, which had a population of about 40 million people and 4 million draft horses.
A draft horse did the manual labor of about four men, making them worth about 16 million agrarian jobs, and they were also put out of work. Horses, of course, aren't horribly adaptive and don't revolt when you keep them from reproducing, and so over the century they virtually disappeared with the jobs they lost.
Furthermore, if you consider the move in the early 1900s from a six day to a five day work week, that's a lot more human jobs that have never been replaced.