What are classes of ballroom dancing?

What are classes of ballroom dancing?
Ballroom dancing is a two person dance where historically it is called ballroom because large rooms were created specifically for dancing.
It usually consists of sever different types of dances such as the fox trot or other popular dances that were made famous by Vernon and Irene Castle.
Personally I view it as a very elegant form a dancing simply because there has to be a lot of precision and accurate steps which make the rhythm of the dancing very lovely. One example of this is Ginger Rogers and Fred Astair which were infamous in the movie realm for their unique dancing in the 1930's films. It's a spectacle to watch and I highly advise you to see a movie staring them because you'll fall in love and would make you want to dance just like them

:)