Why Do We Work 8 Hours a Day?

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Why Do We Work 8 Hours a Day?         Making the work day manageable became a demand of the Chicago labor movement in the late 1860s. Read More WATCH VIDEO: Discovery News' Coolest Jobs Get the lowdown on the coolest jobs in paleontology, genetics, biology and more. Dirty Books Reveal Medieval Reading Habits         A new scientific technique is shedding light on the secret lives of Europeans who lived in medieval times. Read More WATCH VIDEO: Dogs Read Gestures Like Toddlers Dogs recognize pointing gestures almost as well as 2-year-olds. The Space Zucchini and Other Orbital Adventures: Photos         From space zucchinis to poetry to guitar-playing to comet-gazing, spend a day in the life of a space station astronaut. Read More WATCH VIDEO: Space Traveler Trains for Virgin Flight How does a regular citizen prepare for a sub-orbital space flight? Great Blue Heron Chicks Become Big Stars         A great blue heron family's exploits are drawing great big attention thanks to a live video feed. Read More WATCH VIDEO: Caribbean Flamingo How does the flamingo get its pink color, and do their knees really bend backwards? From Our Sponsor At Discovery we value your privacy. If you would like to be removed from Discovery News emails like this, please click here to our subscription center, where you can manage your account. We recently updated our privacy policy. This policy is effective as of 10/30/07. To see new policy click here . Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © 2010 Discovery Communications, LLC