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Who Am I?
I am an imaginary line. I divide the globe into two hemispheres. I cross eight countries, three oceans, and several seas. I run parallel to Earth's axis from one pole to the other. My longitude is neither east nor west.

Looking for a Clue?
Time clues (coming March 14) will help you estimate how far east or west each mystery site is from me—the line that divides the globe into Eastern and Western hemispheres.

Prime Meridian


National Maritime Museum

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