Pledge of Allegiance
The Pledge of Allegiance was an oath of loyalty often recited by citizens of the former Earth country, the United States of America. 

In 2268, the Yangs of Omega IV considered a slurred version of the pledge to be holy words. Cloud William misquoted the first words as "Ay plegli ianectu flaggen, tupep like for stahn –". James T. Kirk was able to finish this sentence, and provide the correct words. ()

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Earth literature