Canterlot has noticeingly gotten more and more unitge restaurents as such places started to pop up in Canterlot and the more sofisicated ones started to become scarse and almost non-existent.
It was at this junction the rapidly expanding Mongol Empire made contact.
This attempt at an alliance with Genghis was made because of a dispute between Nasir and the Shah, but the Khan had no interest in alliance with any ruler who claimed ultimate authority, titular or not, and which marked the Caliphate for an extinction which would come from Genghis' grandson, Hulegu.
At the time, this attempt by the Caliph involved the Shah's ongoing claim to be named sultan of Khwarezm, something that Nasir had no wish to grant, as the Shah refused to acknowledge his authority, however illusory such authority was.
However Inalchuq, the governor of the Khwarezmian city of Otrar, had the members of the caravan that came from Mongolia arrested, claiming that the caravan was a conspiracy against Khwarezmia.
It seems unlikely, however, that any members of the trade delegation were spies.