Actually, it was the 1800s lol, though in the 1920s it became common https://www.spiceworks.com/hr/workforce-management/articles/the-9to5-workday-is-so-last-ce

Actually, it was the 1800s lol, though in the 1920s it became common https://www.spiceworks.com/hr/workforce-management/articles/the-9to5-workday-is-so-last-century/ https://www.spiceworks.com/hr/workforce-management/articles/...