Ballroom Dances - European Family
Viennese waltz is the oldest of this family of dances. The other three dances - waltz (or slow waltz, or modern waltz), foxtrot, and quickstep - are descended from it, either directly or indirectly. Foxtrot will probably be the first dance of this family that you meet. It's the simplest of the group, and is also the most useful in a social setting.