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
International Latin American Dance Champions dances is described in standard texts. Advanced choreography has, however, broken through the traditional limitations of social dancing, and more obviously in the Latin and American dances than in ballroom (Modern or Standard). The qualifying and lesser events days at Brentwood had, in 2009, three adjudication panels of eight former champions and other significant professionals. Early rounds had one panel of eight, alternating. Semi-finals and finals of lesser events had both panels. At the Albert Hall, there were four panels, each of 19 adjudicators. The semi-finals and finals of the amateur and professional titles were each adjudicated by a separate