In traditional East Asia, education generally proceeded from preschool books such as Thousand Words, to the Classic of Filial Piety, the Analects and other Confucian classics. Such a pedagogic procedure was first put into practice in Han China, and became common in East Asia as a whole. All private as well as official education in East Asia shared this procedure in common. The philosophical foundation of this education with East Asian character was Confucianism.