The modern history of China was from the Opium War in 1840 to the founding of New China in 1949. It is the history of China's gradual evolution from an independent eastern power to a semi-colonial and semi-feudal society. It is necessary to learn these things as follows:

1. Taking history as a mirror, especially at this important moment when China is building an Socialism with Chinese characteristics country, we should learn from the bloody lessons that history tells us, always adhere to independence and defend national sovereignty from infringement.

Second, development is the last word. China, a big country in the East, why do so many countries that are not even well-known dare to share it? In a word, China is too poor to fall behind. The country is rich and strong, and the people are strong and the country is strong. This is a healthy development.

Third, enhance the national cohesion of the people of China.

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