Louise Bourgeois's work, which spanned most of the twentieth century, was heavily influenced by traumatic psychological events from her childhood, particularly her father's infidelity. Bourgeois's often brooding and sexually explicit subject matter and her focus on three-dimensional form were rare for women artists at the time. Beginning in the 1970s, she hosted Sunday salons in her Chelsea apartment, where students and young artists would take their work to be critiqued by Bourgeois, who could be ruthless and referred to the gatherings, with characteristically dry humor, as "Sunday, bloody Sunday". Nevertheless, this accessibility and willingness to advise younger artists was exceptional for an established artist of such standing. Her influence on other artists since the 1970s looms large, but is manifested most strongly in feminist-inspired body art and in the development of installation art.