Polygnotus was an ancient Greek painter, active during the 5th century BCE. He is renowned for his large-scale frescoes, which often depicted mythological and historical themes. His works were characterized by their vivid colors and intricate details, contributing significantly to the development of Greek painting. Polygnotus is particularly famous for his paintings in the Lesche of Delphi and the Stoa Poikile in Athens. He is credited with introducing a more naturalistic style and emotional expression in art, influencing later artists. His legacy is recognized as a pivotal moment in the evolution of Western art.