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HOW WE GOT TO NOW WITH STEVEN JOHNSON | "Time" An Inside Look | PBS

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www.pbs.org/howwegottonow
Wednesdays, October 15, 9/8c and October 22-November 12, 10/9c
In the 1880s there were hundreds of time zones in the U.S., not differing by the hour, but by the minute. Railway clerk William F. Allen was so exasperated by the chaos this caused, that he fought tirelessly to standardize time into four zones.
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