How do some monuments become so socially powerful that people seek to destroy them? After ignoring monuments for years, why must we now commemorate public trauma, but not triumph, with a monument? To explore these and other questions, Robert S. Nelso...

"Art" has always been contested terrain, whether the object in question is a medieval tapestry or Duchamp's "Fountain". But questions about the categories of "art" and "art history" acquired increased urgency during the 1970s, when new developments i...