When:
May 12, 2017 all-day
2017-05-12T00:00:00-06:00
2017-05-13T00:00:00-06:00
Where:
http://inventors.about.com/library/inventors/bl_Odometer.htm
12 May 1847. Anniversary of the invention of the odometer by Mormon pioneer William Clayton while crossing the plains in a covered wagon. Previous to this, mileage was calculated by counting the revolutions of a rag tied to a spoke of a wagon wheel.
Image courtesy of Pixabay.com
