Refers to a Chinese dynastic style and period dating to 960 to 1127 CE. During the Northern Song period there was a new interest in antiquity and the beginnings of Chinese archaeology. Printing became more widespread and with it the publication of reference works. Imperial patronage was very noteworthy and influential at this time.  Expensive defense and imperial extravagance led to a weakened dynasty; after incursions by the Jin, Huizong's successor moved south of the Huai River to establish the Southern Song dynasty.——艺术与建筑索引典  @en