Answer:
maybe this article i found will help u find the answer
was a Venetian merchant and adventurer who made an extended, twenty-four year (1271-95), journey with his father Niccolò and his uncle Maffeo into central Asia, including seventeen years spent in Mongol-controlled China. He was among the first Europeans to visit this part of the world and was the first to record in detail the many things he observed there. He included information on the culture and religion as well as the geography and government of the regions he visited. His account of the trip was published in 1298 as Divisament du Monde (Description of the world), now known generally as "The Travels of Marco Polo." Although read widely when it appeared, it was regarded by most readers as a work of fiction. Only later was it realized that most of its contents are quite accurate. In any case, it served to excite Europeans about the riches in trade and culture which might be found in unfamiliar areas of the world and to encourage them to venture out in search of them.
I think their called the cabinet
Loyalty oaths in the US were initiated during the 1950s and 1960s. During the 1950s during Soviet annexation of eastern European Nations and developing a Nuclear Threat.
Senator Joseph McCarthy swayed the Nations thoughts to concern about communist spies, agents and saboteurs and a fear agents may injure the U.S. government through espionage or violence.
They were basically to secure the loyalty and well being of American citizens.
