Definition of polar circle
: either of the two parallels of latitude each at a distance from a pole of the earth equal to about 23 degrees 27 minutes
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“Polar circle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polar%20circle. Accessed 18 May. 2022.
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Time Traveler for polar circle
The first known use of polar circle was in 1556
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