The Song dynasty is often described as an early modern economy. It marked a lot of economical changes from previous dynasties. Starting with the decentralisation of power and reduced economical involvement, it brought on industrial growth and agricultural expansion. Although being forced to advance in military technology due to wars with the Liao and the Jurchen, the Song would eventually fall to the Mongols. Crumbling under Genghis Khan's attacks it would only take one generation until his successor Kublai Khan would declare a new Yuan Dynasty. Find out all about this Epoch on IT'S HISTORY!