History of ballet
Ballet originated in the Renaissance court as an outgrowth of court pageantry in Italy, where aristocratic weddings were lavish celebrations. Tutus, ballet slippers and pointe work were not yet used. The choreography was adapted from court dance steps. Performers dressed in fashions of the times. For women that meant formal gowns that covered their legs to the ankle. Early ballet was participatory, with the audience joining the dance towards the end.
Ballet
Neoclassical ballet is usually abstract, with no clear plot, costumes or scenery. Music choice can be diverse and will often include music that is also neoclassical (e.g. Stravinsky, Roussel). Tim Scholl, author of "From Petipa to Balanchine", considers George Balanchine's "Apollo" in 1928 to be the first neoclassical ballet. "Apollo" represented a return to form in response to Sergei Diaghilev's abstract ballets. Balanchine worked with modern dance choreographer Martha Graham, and brought modern dancers into his company such as Paul Taylor, who in 1959 performed in Balanchine's "Episodes".