The Situationist International was a radical social and artistic movement founded in 1957 in Europe. It aimed to critique consumer culture and promote revolutionary ideas through art, politics, and urbanism. The group believed in creating situations that would disrupt everyday life and encourage people to experience the world in new ways. Key figures included Guy Debord, who wrote the influential book "The Society of the Spectacle," and Asger Jorn, a prominent artist. The movement had a significant impact on the May 1968 protests in France, where its ideas inspired activists to challenge the status quo and envision a more liberated society.