The Rumba was originally a marriage dance from Cuba. However, it became a popular ballroom dance and was introduced in the United States about 1933. It is 4/4 in time. The characteristic feature is to take each step without placing the weight immediately on that step which causes the hips to sway from side to side.
The basic foot movement can be achieved quite quickly by beginners and it can be danced to the more romantic slower melodies found in popular songs. There are many beautiful variations which can be used by intermediate and advanced dancers.