In Material Witness, Spiderwoman Theater, regarded as one the most influential Native theatre companies “in the history of the country” (Oskar Eustis, Public Theater), turns their “story-weaving” dance-theatre to issues of violence against women in Indigenous communities. Weaving together the real-life experiences of a multigenerational cast that also includes Native actors from Canada, the collaborative piece celebrates courage and generates healing. Stalwarts of the downtown performance scene, Spiderwoman, cited for their “rollicking humor” by The New York Times, are marking their 40th anniversary.