(1) Event: Temple League. Content: both sides withdraw their troops and hold the border; The Northern Song Dynasty gave Liao "old coins" every year. Positive role: make people on both sides of the strait live and work in peace and contentment; During the Song and Liao Dynasties, it maintained a relatively peaceful situation for more than 100 years. It has promoted the economic and cultural exchanges and development between the two sides.

(2) 1 127. Jurchen.

(3) Features: Central Plains regime and minority regime coexist; There is war and peace between the Central Plains regime and the ethnic minority regimes.