Cathay language, the word Cathay was sometimes used for China, although increasingly only in a poetic sense, until the 19th century when it was completely replaced by "China". A person from Cathay (i.e., a Chinese person) was also written in English as a Cathayan or a Cataian. However the terms "China" and "Cathay" have histories of approximately equal length in English. The term is still used poetically. Cathay is more prevalent as proper noun in names, such as Cathay Pacific Airways or Cathay Hotel. The flagship airline of Hong Kong is called as such because the founders envisioned that one day,
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