RUmba Group dance instruction Greenville SCThe Rumba was originally done for amusement on the farms of Cuba. However, it became a popular ballroom dance and was introduced in the United States about 1933. In Rumba, steps are made with a slightly bent knee, which, when straightened, causes the hips to sway from side to side in what has come to be known as Cuban Motion. Rumba is one of the most romantic and popular of the social dances