First balled dancer that used pointe shoes was Marie Taglioni in 1832 ballet "La Sylphide".
Cha-Cha
Famous modern dance Cha-Cha originated from Cuba.
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....