History of European medieval dance is fragmented and limited, but is believed that simple folk dances were widespread among common and wealthy classes.
Heavy Lifting
Male dancer lifts about 1 1/2 tons of ballerinas, in performance only, during his career. Don't bother asking how many tons of lifting he does if all the rehearsals are included....
Proof of dance
First archeological proof of dance comes from the 9 thousand year old cave paintings in India.