I believe, although I am no expert, that this rhythm may have started in Cuba. However, that was a long time ago and salsa as we know it now has had contributions from all over Latin America. In fact, I would say that it was not only Latin Americans who contributed to salsa. Larry Harlow, for example, is a Jewish guy from New York. That is one of the things that makes salsa so incredible.
Salsa is about feeling.
Salsa is beautiful.