James McNeill Whistler was an American artist born in 1834, known for his contributions to the Aesthetic Movement. He is best recognized for his innovative approach to painting, emphasizing color and composition over traditional subject matter. His most famous work, Whistler's Mother, showcases his unique style and has become an iconic representation of 19th-century art. Whistler spent much of his life in Europe, particularly in London and Paris, where he developed his artistic techniques. He was also a skilled etcher and contributed to the field of printmaking. Whistler's work influenced many artists and continues to be celebrated in museums worldwide.