In a myth tradition, this technology was invented when a phoenix dropped an impression of a hoof-print onto the ground, inspiring a four-eyed man named Cangjie (“chang-ji’eh”). In China, different forms of this technology (10[1])bear names such as “seal”, “grass”, “bronze” and “oracle bone.” (10[2])In a book (10[1])co-written with the Hall of Worthies, Joseon King Sejong the Great introduced one form (10[1])of this technology (10[1])known as Hangul (10[1]-5[1])(“hahn-gool”). In the 1950s, the mainland Chinese government introduced a “simplified” form of this technology, replacing “traditional” forms used elsewhere. For 10 points, hiragana, katakana, and kanji are Japanese forms of what systems used to record texts? ■END■ (10[1])