Ballroom dance has always been fluid, with new dances or folk dances being added to or removed from the ballroom repertoire from time to time, so no list of subcategories or dances is any more than a description of current practices. There are other dances historically accepted as ballroom dances, and are revived via the vintage dance movement. In Europe, Latin Swing dances include Argentine tango, mambo, Lindy Hop, swing boogie (sometimes also known as nostalgic boogie), and disco fox. One example of this is the subcategory of cajun dances that originated in Acadiana, with branches reaching both coasts of the United
Ballroom dance States, the member branches of the WDC (National Dance Council of America) and the WDSF (USA Dance) both grant national and regional championship titles. Ballroom dancing competitions in the former USSR also included the Soviet Ballroom dances, or "Soviet Programme". Australian New Vogue is danced both competitively and socially. In competition there are 15 recognised New Vogue dances, which are performed by the competitors in sequence. These dance forms are not recognised internationally, neither are the US variations such as American Smooth, and Rhythm. Such variations in dance and competition methods are attempts to meets perceived needs in the local