One way in which pax romana packs mongolia are similar is that both were characterized by

political stability
Both Pax Romana and Pax Mongolica are terms which have been coined by historians. Both refer to a period of relative political stability, unified imperial administration and a growth in trade facilitated by the stability and standardized administration.

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More than 4 million enslaved hunan beings in the south and they touched every aspect of the regions social, political and economic life.