to speak of such precursors as the Iron Age Iberians, El Greco, Gauguin and Cézanne, it is essentially a beginning: the most innovative painting since Giotto. As we will see in the next volume, it established a new pictorial syntax; it enabled people to perceive things with new eyes, new minds, new awareness. Les Demoiselles d'Avignon is the first unequivocally 20th-century masterpiece, a principal detonator of the modern movement, the cornerstone of 20th-century art. For Picasso it would also be a rite of passage: what he called an exorcism.' It cleared the way for cubism. It likewise banished the artist's demons. Later, these demons would return and require further exorcism. For the next decade, however, Picasso would feel as free and creative and 'as overworked' as God. Suzanne Preston Blier addresses the history and meaning of Les Demoiselles d’Avignon in a 2019 book in a different way, one that draws on her African art expertise and an array of newly discovered sources she unearthed. Blier addresses the painting not as a simple bordello scene but as Picasso's interpretation of the diversity of women from around the world that Picasso encountered in part through photographs and sculptures seen in illustrated books. These representations, Blier argues, are central to understanding the painting's creation and help identify the demoiselles as global figures – mothers, grandmothers, lovers, and sisters, living the colonial world Picasso inhabited. She says that Picasso has reunited these diverse women together in this strange cave-like (and womb-resembling) setting as a kind of global "time machine" – each woman referencing a different era, place of origins, and concomitant artistic style, as part of the broader ages of man them important to the new century, in which core themes of evolution took on an increasingly important role. The two men (a sailor and a doctor) depicted in some of the painting's earlier preparatory drawings, Blier suggests, likely represent the male authors of two of the illustrated books that Picasso employed – the anthropologist Leo Frobenius as sailor, one travels the world to. explore various ports of call and the Vienna medical doctor, Karl Heinrich Stratz who holds a human skull or book consistent with the detailed anatomical studies that he provides. Blier is able to date the painting to late March 1907 directly following the opening of the Salon des Independents where Matisse and Derain had exhibited their own bold, emotionally charged