There’s a purpose the illustrations of 15th-century outfits search so glamorous in “Korean Vogue: From Royal Court docket to Runway,” at the George Washington University Museum and the Textile Museum. The sleekly personalized and gold-embellished outfits are in fact costumes from the 2011 hit South Korean Tv set sequence “The Princess’s Man,” a interval romance that took some liberties with standard Korean garb. The precise historical products in the demonstrate are subtler, but no significantly less fascinating. Individuals dubiously exact get-ups aside, “Korean Fashion” addresses a minor more than a century of the nation’s clothing. The oldest items are royal and aristocratic clothes that had been exhibited at the 1893…