07/22/2026
“Why must art be static? You look at an abstraction, sculptured or painted, an entirely exciting arrangement of plans, spheres, nuclei, entirely without meaning. It would be perfect, but it’s always still. The next step in sculpture is motion.” – Alexander Calder
Happy Birthday to American sculptor and painter Alexander Calder (1898-1976)!
Calder forever transformed the language of sculpture. His suspended sheet metal and wire constructions, activated by the currents of the air, introduced movement into what had long been a static medium. He pioneered these structures as “drawings in space,” blurring the boundaries between line, form, and sculpture.
Calder was born into a family of artists, with both his father and grandfather being established sculptors and his mother a portrait painter; he was encouraged to create from a young age. Although he initially studied mechanical engineering, his technical background would later become integral to his artistic practice, informing the delicate systems of balance and motion that defined his oeuvre.
His path towards abstraction began with his wire sculptures of the 1920s, but it was a visit to Piet Mondrian’s studio in October 1930 that deeply influenced his trajectory. Calder was struck by Mondrian’s use of space and color, pushing his own oeuvre to shift toward abstraction and eventually his mobiles. It was Marcel Duchamp who, in 1931, coined the term “mobile” for these new works, a French word that carries the double meaning of “motion” and “motive.”
In addition to his mobiles, Calder was an avid draftsman, with his works on paper standing as vital, independent achievements. Across mediums, Calder produced a prolific body of work characterized by bold, biomorphic shapes, primary colors, and an organic sense of balance and motion.
Photo of Alexander Calder in his Roxbury studio, 1941.
Art © 2026 Calder Foundation, New York / Artists Rights Society (ARS), New York
