Who is John Singer Sargent from The Greater Journey: Americans in Paris and what is their importance?

John Singer Sargent had already been studying in Paris for several years by 1882. During that year (1882), he became critically acclaimed artist with such works as "El Jaleo," "The Daughters of Edward Darley Boit," and his most famous, "Madame X", which came to be known as his masterpiece.