1, established in the Northern Song Dynasty.
(1) Time: 960. (2) Founder: Zhao Kuangyin. (3) Capital: Bianjing.
(4) Development: After the establishment of political power in the Northern Song Dynasty, the separatist forces in various places were eliminated one after another, and the vast areas in the Central Plains and the south were unified.
2. The establishment of the Khitan regime.
(1) Nationality: Qidan nationality.
(2) Time: 9 16 years.
③ Capital: Attending Beijing (now south of Zuo Qi, Bahrain, Inner Mongolia). (4) Founder: Lu Ye Abao Machine. (5) Development: Khitan → Liao.
3. Yuan Tan League.
During the coexistence of Song and Liao Dynasties, there were frequent wars between the two sides. 1004, the Liao army marched into the Northern Song Dynasty, and the striker of the Liao army pointed directly at Tanzhou, threatening the security of the capital of the Northern Song Dynasty.
At the request of Kou Zhun, Song Zhenzong arrived in Tanzhou, Song Jun's morale was greatly boosted and he fell into the Liao army.
The following year, the two sides signed a contract: the two sides withdrew their troops and guarded the border, and the Northern Song Dynasty sent Liao "ancient coins" every year. Historically known as the Yuan Tan League.