Wang Zhen, a magistrate of the Yuan Dynasty (1271-1368), is another important
person who made a great contribution in printing history. He commissioned a
craftsman to carve more than 30,000 wooden characters, and in 1298 he printed
his book Jing De Xian Zhi(A County Annual About Jing De), which is the first
book printed from the movable type.
He is also credited with the invention of horizontal compartmented cases that
revolved about a vertical axis, making it easier to handle the movable type
pieces. Wang Chen's innovation was not followed up in China.