Hello new followers! What are you interested in / excited about in the area of progress studies? What would you like to hear about?
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Cities I know less about! Interesting topic
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Doesn't it distort the picture to start at 1870? I've seen claims that pre-industrial hours were much less. http://groups.csail.mit.edu/mac/users/rauch/worktime/hours_workweek.html …
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I need to research this more, but I'm skeptical
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