Astronomy college course/Astronomy (wikipedia)/Quiz01/17

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A simple way to understand the answer to this question is by remembering that Europe is currently in the Dark Ages eliminating Greece. Also, the Americas have yet to be discovered putting them out of the discussion. Remembering this two hints allows for only one answer left which is Egypt and China. BAhrns15 (discusscontribs) 18:29, 22 January 2016 (UTC)

also check the spelling of wikt:supernova--BAhrns15 (discusscontribs) 18:55, 22 January 2016 (UTC)