Mayfair is a place in London, England in the City of Westminster, named after the fortnight-long May Fair that took place there from 1686 until its was banned in that location in 1764. Prior to 1686, the May Fair was held in the Haymarket[?], and after 1764, it moved to Fair Field in Bow.
... with three grammatical genders (masculine, feminine, neuter) and three numbers (singular, plural, dual). It has eight cases: nominative, vocative, accusative, ...