Why is Kyle Polo a spy sent by the king of the Yuan Dynasty, who often performs confidential tasks?

In fact, the so-called spy is not, but Kyle Polo was really sent by Kublai Khan to perform many important tasks that can be called secrets. He once shuttled between more than a dozen countries to complete the tasks entrusted to him by Kublai Khan. He is very clever and witty, and is proficient in four languages. Kublai Khan appreciated him very much and often asked him to perform some confidential tasks.

Kyle Poirot is a famous Italian traveler and businessman. It took him more than three years to come to our country. At that time, Kublai Khan ruled the Central Plains in the Yuan Dynasty, and Kyle Polo was received by Kublai Khan. Kyle Poirot is a clever and diligent man. After staying in Mongolia for a period of time, he learned the local language etiquette. He can basically read local books and know some local customs, which makes Kublai Khan like Kyle Polo very much. Kublai Khan also thought that as a foreigner, it was really hard for Kyle Polo to have such ability, so he began to send him to complete a secret mission. With superhuman ability, Kyle Poirot successfully completed what Kublai Khan gave him, so Kublai Khan decided to let him help him accomplish more things.

Kublai Khan liked the cultural customs of various places very much, so later Kublai Khan asked Kyle Polo to travel to neighboring countries and let him record the culture and customs of those places. Kyle Polo traveled to many areas in the Central Plains, and also visited neighboring Thailand, Vietnam, Laos and other places, and recorded a large number of local cultural customs, which were recorded and reported to Kublai Khan. So to some extent, Kyle Polo acted as a spy of the Yuan Dynasty.

But on the whole, Kelpolo's task is only to understand the local culture, and then try his best to record them and bring them to Kublai Khan, which is different from what we really understand as a spy. However, it must be said that the customs of our Yuan Dynasty recorded by Kyle Polo during his ten years in China have made Europeans yearn for the East more and promoted the opening of new air routes, which is of great significance.