The author considers actual and. despite the presence of a number of written medieval sources and a wide consideration of the topic in scientific literature. discussion questions about the Alans who were in the service of the Mongol Kaans and emperors of the Yuan dynasty. and about the time of the first appearance of the Alans in the Mongol service. https://fitnessgravesyardes.shop/product-category/upper-led-display-board/