The United States’ current 50 star flag was designed as a school project by 17 year-old Robert G. Heft. Heft received a B- for his efforts, but his teacher said he would reconsider the grade if Congress accepted Heft’s ostensibly mediocre design. In 1959, that’s precisely what happened, and Heft’s design was selected to be the latest iteration of the American flag. His teacher promptly changed the grade to an A.

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