Introduction to the Norman Rockwell mosaic: The Norman Rockwell mosaic was presented to the United Nations on behalf of the United States by the then first lady, Mrs. Nancy Reagan, on the 40th anniversary of the founding of the United Nations in 1985. . This painting is based on a painting by American artist Norman Rockwell called "The Rule of Man", which illustrates the importance of the Rule of Man throughout the world by depicting dignified and decent people of all races, creeds and colors. Common themes in religion.