But it's very clear, looking at these syllabuses, that — it's used now as a way of saying that all forms of appreciation of art that were in place for centuries, or millennia, in the 20th century were discarded.
Pero, mirando los programas, es evidente que ahora se utiliza como manera de decir que todas las formas de apreciación del arte empleadas durante siglos o milenios se desecharon en el siglo XX.