Who is Polygnotus from Gorgias and what is their importance?

Polygnotus was a Greek painter. He was born in Thasos during the 5th century BC, later acquiring Athenian citizenship. The artist painted on the Stoa Poecile walls, mostly for charity. His most important works include the frescoes at Delphi, which depict Odysseus visiting Hades. He used few simple colors, but he engaged beauty in individual figures, showing the ethical character in his art that was gentle and almost childlike.