Cathay "Pratica della mercatura", a guide about trade in China, a country he called "Cathay", noting the size of Khanbaliq (modern Beijing) and how merchants could exchange silver for Chinese paper money that could be used to buy luxury items such as silk. Words related to Khitay are still used in many Turkic and Slavic languages to refer to China. However, its use by Turkic speakers within China, such as the Uyghurs, is considered pejorative by the Chinese authority who had tried to ban it. As European and Arab travelers started reaching the Mongol Empire, they described the Mongol-controlled Northern China
Cathay Pacific has become a hit with passengers, making Cathay Pacific one of the industry leaders in offering mobile services to users of smart phones. Cathay Pacific is also now following a trend among many airlines to improve its brand image to customers and shareholders with social media, and is ranked fourth worldwide. The airline now uses a range of social media tools including Facebook, Flickr, Twitter, YouTube and blogging to share ideas with customers. In addition, it has launched a virtual tour to enable passengers to experience Cathay Pacific's new cabins and services without having to step aboard the aircraft. On