* Swing is a style of jazz music that emerged in the 1930s, characterized by a syncopated rhythm and a "swinging" feel.
* Son is a Cuban musical genre with roots in African and Spanish music, known for its infectious rhythms and often humorous lyrics.
Therefore, there is no specific date for the creation of "Swing con Son." It's possible that you're thinking of a particular band or artist who combined elements of swing and son, but without further context, it's impossible to say.
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