China’s four great inventions:
1. The four great inventions: gunpowder, papermaking, printing, and the compass.
2. Four famous works: "Journey to the West", "A Dream of Red Mansions", "Water Margin" and "The Romance of the Three Kingdoms".
3. Four famous doctors: Bian Que, Hua Tuo, Zhang Zhongjing, and Li Shizhen.
4. Four famous flowers: peony, chrysanthemum, narcissus and camellia.
5. The four major calligraphy fonts: regular script, official script, seal script, and running script.
6. Four famous embroideries: Su embroidery, Hunan embroidery, Guangdong embroidery, and Shu embroidery.
7. The four famous brocades: Shu brocade, Yun brocade, Song brocade and Zhuang brocade.
8. Four famous Danes: Mei Lanfang, Cheng Yanqiu, Shang Xiaoyun, and Xun Huisheng.
9. The four beauties: Xi Shi, Yang Yuhuan, Wang Zhaojun, and Diao Chan.
10. The four talented women: Li Qingzhao, Zhuo Wenjun, Shangguan Wan'er, and Cai Wenji.
11. The four major female generals: Hua Mulan, Mu Guiying, Liang Yuhong, and Fan Lihua.
12. The four great talents: Tang Bohu, Wen Zhengming, Zhu Zhishan, and Xu Zhenqing.
13. Four famous fans: sandalwood fan, fire painting fan, bamboo silk fan and damask silk fan.
14. The four quintessences of Chinese culture: traditional Chinese medicine, calligraphy and painting, Peking opera, and martial arts.
15. Four major tragedies: "The Injustice of Dou E", "Autumn in the Han Palace", "Rain in the Wutong" and "The Orphan of Zhao".
16. Four major folk legends: "Liang Shanbo and Zhu Yingtai", "The Cowherd and the Weaver Girl", "Meng Jiangnu" and "The Legend of the White Snake".
17. The four great spiritual beasts: Qinglong, White Tiger, Suzaku, and Xuanwu.