Mezzo-soprano Anita Rachvelishvili sued the Metropolitan Opera and her union, alleging the company unlawfully terminated her contracts because of a vocal issue that developed after she gave birth. She ...

The gist of Dadaism was the "gratuitous act," and the most gratuitous Dadaist act of all was Marcel Duchamp's invention of the readymade. One can regard them as experiments in art, or mock works of ...