Final answer:
Post-1918 arts and popular culture were marked by Modernist movements like Cubism, Dada, and Surrealism, the integration of mass communication, critique in Pop Art, and the rise of American abstract expressionism. New York City became the art world center, and there was increased inclusiveness in art narratives.
Step-by-step explanation:
After 1918, the arts and popular culture were profoundly influenced by major trends that revolutionized creative expression. The aftermath of World War I saw the emergence of movements such as Cubism, Dada, and Surrealism, while World War II further disrupted traditional norms and propelled Modernism into a state of reflection on human culture's direction. Artists like Pablo Picasso and Marcel Duchamp utilized found objects, fostering the integration of industrial artifacts with artistic creation. Popular culture, heavily impacted by mass communication channels like movies, radio, and television, significantly shaped the arts, with Pop Art critiquing mass marketing practices and the consumer culture that grew in post-WWII United States.
New York City became the new center for Western art due to European artists fleeing wartime devastation. This movement coincided with the rise of American abstract expressionism, an art form emphasizing individual freedom and the unconscious, uniting expressive color and form. As the first major post-war movement, it characterized the artists' desire to break away from convention and embrace the abstract.
Moreover, during this era, there was a shift in the inclusion of diverse narratives in art history, acknowledging artists of color and women, and expanding beyond just painting, sculpture, and architecture to include diverse media and perspectives.