Analysis of information sources in references of the Wikipedia article "Avenue C (Manhattan)" in English language version.
It was called the Lower East Side, the East Village, Alphabet City. But in Nuyorican, the local Latino vernacular, it is Loisaida. Popularized by the poet Bittman Rivas in 1974, the name became official when the city sanctioned Loisaida Avenue as another name for Avenue C in 1987.