Eternal friendship between Qin and Jin in modern times refers to a couple who are harmonious and beautiful, their love never changes, and they grow old together. The concept of 'the good of Qin and Jin' originated from the Spring and Autumn Period, when the states of Qin and Jin used marriage alliances to maintain peace. The initial purpose of this marriage alliance was to form a political partnership with strong interests, but later this statement was gradually erased, and the beautiful marriage alliance between the two families was also referred to as' the good of Qin and Jin 'in later generations.
The origin of the good deeds of Qin and Jin
Qin and Jin were two neighboring great powers. Qin was located in the eastern part of Gansu and the central part of Shaanxi, and developed and grew in the Rongdi region. Due to the fusion of Rong and Di customs in their interactions, the Qin people were discriminated against by various countries in China and were referred to as "Qin Rong" or "Di Qin". But through unremitting efforts, the power of Qin was relatively strong, while Jin was already a powerful country in the Central Plains at that time.