Answer:
Ballroom Standard & Smooth Dances. Standard & Smooth Dances are often thought of and referred to as Ballroom Dances. Foxtrot, Slow Waltz, Viennese Waltz, and Tango are found in both disciplines.
Explanation:
The Foxtrot is an early 20th Century American dance that has its origins in the one-step, the two-step, and syncopated ragtime dances (Norton). It was popularized in the USA by dancers Vernon and Irene Castle in 1914, and it is believed to be named after Harry Fox, who was an entertainer (Bedinghaus).