Cathay as "Cathay" (in a number of spelling variants) as well. The name occurs in the writings of Giovanni da Pian del Carpine (c. 1180–1252) (as "Kitaia"), William of Rubruck (c. 1220–c. 1293) (as "Cataya" or "Cathaia"). Rashid-al-Din Hamadani, ibn Battuta, Marco Polo all were referring to Northern China as Cathay, while Southern China, ruled by the Song dynasty, was "Mangi", "Manzi", "Chin", or "Sin". The word "Manzi" (蠻子) or "Mangi" is a derogatory term in Chinese meaning "barbarians of the south" ("Man" was used to describe unsinicised Southern China in its earlier periods), and would therefore not have been used
Cathay City Hong Kong International Airport. Cathay City has of space and is one of the largest corporate head office facilities in Asia. Cathay City includes three 10-storey office buildings, a 23-storey staff hotel, a flight training centre with a safety training school, a workshop and storage building, a leisure centre, and an airline stores building. The centre has a steel pedestrian bridge. The head office of Air Hong Kong, as of 2004, is located on the fourth floor of the South Tower of Cathay City. In February 2012 FlightSafety International and Gulfstream Aerospace, in a venture with Cathay Pacific, opened a