Language and writing: including the origin, evolution and construction of Chinese characters, as well as Chinese grammar, vocabulary and pronunciation. Ideology and Morality: It includes Confucianism's thoughts of benevolence, righteousness, courtesy, wisdom and faith, Taoism's inaction, Mohism's universal love and non-attack, and traditional moral concepts such as filial piety, loyalty, courtesy, righteousness and shame. Literature and art: including classical poetry, prose, novel, opera, calligraphy, painting and other literary and artistic forms. Science and technology: including ancient science and technology, invention and creation, technology and so on, such as papermaking, printing, compass, gunpowder and so on. Folk culture: including traditional festivals, customs, etiquette and folk beliefs, such as Spring Festival, Tomb-Sweeping Day, Dragon Boat Festival and Mid-Autumn Festival. History and culture: including historical events, historical figures and historical sites, such as the Mausoleum of Qin Shihuang, Chang 'an City Site in Han Dynasty, Chang 'an City Site in Tang Dynasty, etc. Regional culture: including customs and lifestyles of different regions and nationalities, such as Lingnan culture in Guangdong, Minnan culture in Fujian, and western Sichuan culture in Sichuan.