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
Đại Cathay Đại Cathay Đại Cathay, whose real name was Lê Văn Đại was a notorious 1960s Saigon mobster, and was considered as the top or “number one” of the “Four Great Kings” of Saigon's criminal underworld before 1975. The Four Great Kings of the Saigon criminal underworld at the time referred to the four most powerful mobsters in the city, immortalized by the saying: 1st) Đại Cathay, 2nd) Huỳnh Tỳ, 3rd) Ngô Văn Cái, 4th) Ba Thế. Dai Cathay was born in 1940 as the son of Lê Văn Cự, who was a gangster in the market area of Cầu Muối.