Is it retro dance is a types of ballroom dance?

Well there are a variety of different dance styles used in ballroom dancing such as : Salsa, Waltz, Foxtrot, Tango, Mambo, Quickstep, Cha cha, Jive, Rumba, Lindy Hop, Paso Doble, Samba, And many more...

Cha Cha

If it has a certain style and culture associated with it, consider it an ethnic dance. Basically you can think of all dance as "ethnic" dance. The one thing to consider is how ballroom in particular...

jigs and taps

It comes from Mexico,