1. The discovery and origin of mathematical knowledge 2. Views on the ethnic policy of the Tang Dyna

1 is a history question and 2 is a history question.

Origins in Greece Rational reasoning and judgment replaced the primitive accumulation of experience in the four ancient civilizations, but the mathematical experience of Egypt and Babylon was the basis of Greek rational creation, and the primitive accumulation of experience was said to be the needs of real life, such as land surveying.

Mathematics is one of the oldest disciplines, and its origins can be traced back more than 10,000 years. However, very little information from before 1000 A.D. has survived. To date, only in ancient Egypt and Babylon have more systematic mathematical texts been found.

Ethnicity: 1. Promote ethnic integration through intermarriage and affinity. (Princess Jincheng, Princess Wencheng) 2, fighting on behalf of the council, Taizong was called the Khan of Heaven 3, respecting national habits 4, exchanging envoys, cultural exchanges 5, and cultivating virtue and politics.

Foreign affairs: 1, war (use of troops against the Turks) 2, setting up jurisdictional institutions (setting up governorships in the Turkic homeland) 3, communicating with other countries (Xuanzang's westward journey).

Ethnographic copy:

1. Promote the integration of the Bai nationality through intermarriage and harmony. (Princess Jincheng Du, Princess Wencheng).

2, to discuss the Zhi War, Taidao Sect was called the Heavenly Khan.

3. Respect national customs.

4. Exchange of envoys and cultural exchanges.

5. Xiu Dezheng.

Foreign Affairs: 1. War (use of troops against the Turks).

2. Set up a jurisdiction (set up a governorate in the Turkic homeland) 3, and communicate with other countries (Xuanzang traveled west).

The national policy is to gather people's hearts, and the foreign policy is also a policy towards other ethnic groups.

It should be that peaceful development and war coexist, and that the Tubo Nanzhao and the Northeast are all at peace, while the Turks are friendly and armed with attack.

Bi-directionality, extensiveness (what the teacher said, it will not be wrong).

Open-minded, open-minded. There are history books.

Mathematics originally began with knotted rope notes. About 3 million years ago, human beings were still in the primitive age of wool and blood, collecting wild fruits and hunting wild beasts for a living. Such activities are often carried out collectively, and the resulting "product" is equally distributed.

Ethnic policy: "all their tribes, according to their customs", with full respect for the customs and habits of ethnic minorities: the governance of the Turks.

Foreign policy: inclusive and open to the outside world.

Case Study: Foreign exchange with Japan and North Korea.

Tang Taizong Li Min's ancestor Li Hu was once named "Tang Guogong", his father Li Yuan annihilated the heroes, appeased the world, and later established the country with "Tang" as the name of the country.