Emphasis Preaching Journal
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Illustration
There have been so many ways invented to keep track of time. The Big Horn Medicine Wheel in Wyoming (like many similar structures in the western US and Canada) is a prehistoric rock arrangement of 28 spokes emanating out of a hub; Native Americans used it to measure the summer and winter solstice and the vernal and autumnal equinoxes. Sundials were invented by ancient Egyptian and Babylonian astronomers to track the passage of daylight.
