Vito Hannibal Acconci was born on January 24, 1940, in the Bronx, New York, to Italian immigrant parents as their only son, named after his ailing grandfather. Raised in a supportive household that encouraged artistic pursuits, he attended Roman Catholic schools, including Regis High School, where classrooms lacked female students until graduate school. Acconci earned a BA in literature from the College of the Holy Cross in 1962 and an MFA in writing from the University of Iowa in 1964, initially pursuing poetry. He co-edited the avant-garde poetry magazine *0 to 9* with Bernadette Mayer, his future sister-in-law through a brief marriage to artist Rosemary Mayer in the 1960s.
By 1969, Acconci pivoted dramatically from poetry to performance and conceptual art, using his body to probe boundaries of public and private space, voyeurism, sexuality, and viewer complicity—themes influenced by Situationism and artists like Jasper Johns and Robert Rauschenberg. Landmark works include *Following Piece* (1969), where he tailed strangers on New York streets until they entered private spaces, and *Seedbed* (1972), a scandalous installation at Sonnabend Gallery in which he hid under a ramp, masturbating while broadcasting explicit fantasies to passersby. Videos like *Theme Song* (1973) and collaborations such as *Pryings* (1971) with partner Kathy Dillon further blurred artist-audience dynamics, embodying performance and body art's raw confrontation with existential unease and power relations.
In the late 1970s, Acconci shifted to large-scale sculpture, installation, and architecture, founding Acconci Studio in 1988 as a collaborative practice. Notable public projects include *Instant House* (1980), a self-erecting pavilion; *Walkways Through the Wall* (1998) at Milwaukee's Wisconsin Center; and *Murinsel* (2003), a floating island bridge in Graz, Austria, designed to foster social interaction in liminal spaces. His provocative oeuvre, held in collections like MoMA and the Whitney, influenced generations including Laurie Anderson, Bruce Nauman, and Tracey Emin, pioneering video art, relational aesthetics, and interactive design. Acconci taught at institutions like Cooper Union and Yale until his death on April 27, 2017, leaving a legacy of audacious boundary-crossing.