Ancient king’s hat holds clues to Korean alphabet

A hat which belonged to South Korea’s most revered monarch King Sejong has been recovered more than 500 years after it was looted by Japanese invaders, a senior scholar said Wednesday.
Apart from its intrinsic value as an historical relic, the discovery has thrilled scholars after documents were found stitched inside the hat carrying explanations of King Sejong’s greatest legacy — the Hangeul alphabet....