Denver lands in top 10 for longest workweek (Slideshow)

You’ve probably heard your grandparents tell you about tilling the soil all day and walking to and from school — uphill, both ways.

At least part of that is true; the average 1950s American worked an average of 214 more hours per year than Americans did in 2010.

But that doesn’t mean Americans today are producing less than our predecessors. In fact, because of technological advances, Americans are 400 percent more productive today than they were in the 1950s, according the the U.S. Bureau of…