Origin of Hangul
Ledyard holds that the Koreans adopted five core consonant letters from ’Phags-pa, namely ㄱ "g" , ㄷ "d" , ㅂ "b" , ㅈ "j" , and ㄹ "l" . These were the consonants basic to Chinese phonology, rather than the graphically simplest letters (ㄱ "g" , ㄴ "n" , ㅁ "m" , and ㅅ "s" ) taken as the starting point by the "Haerye." A sixth letter, the null initial ㅇ, was invented by Sejong. The rest of the consonants were developed through featural derivation from these six, essentially as described in the "Haerye"; a resemblance to speech organs was an additional motivating factor in selecting the shapes of both the basic letters and their derivatives.
Burling Hull
Hull claimed to be — and is generally credited as — the inventor of the Svengali deck of cards, which he patented in 1909. He claimed to have invented more than 500 magical effects and he was a prolific writer, with 52 published books to his name, including "Sealed Mysteries and Sleights", "The Encyclopedia of Stage Illusions", "Sealed Mysteries", and "How to Answer Questions for Crystal Gazing and Mind Reading Acts". He wrote on a wide variety of magical subjects, including card tricks, mentalism, escapes, razor blade swallowing, sightless vision, billiard ball manipulation, silk magic, second sight acts, publicity, and showmanship.