Alexander Calder was born in Philadelphia in 1898, the son of a father who was a sculptor and mother who was a painter. From 1923 – 1926 he studied art at the Art Students League, New York and began making wire sculptures that were essentially line drawings in space. In 1926, he traveled to Paris and met Marcel Duchamp who named Calder’s moving suspended sculptures ​“mobiles.” Calder continued to make mobiles, the art form he had invented, for the remainder of his life.