What achievements of different civilizations did China learn from in its development?

Ancient China belonged to a country with a strong sense of local cultural identity. Because it regards itself as a country in heaven, it seldom draws lessons from other countries politically and ideologically. But in any case, external influences permeate every aspect of our lives. Here are some recent examples.

Musical Instruments: Pipa, Erhu Guzheng and other well-known traditional national musical instruments all originated from nomadic people. China's native musical instruments may only be chimes.

Science: Missionaries such as Tang Ruowang came to China in the late Ming and early Qing Dynasties to introduce the western calendar and the mathematics and scientific knowledge of the Renaissance, such as geometry, algebra and Newtonian mechanics.

Religion: Buddhism, Christianity and Islam were all introduced from foreign countries. Among them, Buddhism spread in Han Dynasty was first introduced between Han Dynasty. The introduction of Christianity actually began as early as the Tang Taizong period, when it was also called Nestorianism. Islam was first introduced into the Tang Dynasty (it can be seen that the prosperous period of the Tang Dynasty was an open era). The descendants of Arabs and Han people gradually formed Hui people, but they also assimilated with Han people and spoke Chinese.

Food: Basically, the food we eat every day is generally from abroad. Potatoes, cabbages, sweet potatoes, tomatoes, peppers ... are basically exotic species with the words "Hu", "Yang" and "Fan". Therefore, without these exotic foods, there would be no diverse food culture.