Happy Birthday to Painter of ARRANGEMENT_IN_GREY_AND_BLACK (born on this date in 1834)!

from Writer's Almanac (American Public Media, Garrison Keillor):
July 11 is the birthday of the artist best known for a painting of his mother: James Abbott McNeill Whistler, born in Lowell, Massachusetts (1834). In 1885, Whistler gave his famous “Ten O’clock Lecture” to general acclaim. One reviewer wrote: “[T]he Prince’s Hall was crowded [...] There were lords and ladies, beauties and their attendant ‘beasts,’ painters and poets, all who know about Art, and all who thought that they did [...] all seemed delighted with ‘Jimmy.’” In the hour long lecture, Whistler talked about his philosophy of “art for art’s sake.” Unlike most Victorians, he didn’t believe art or artists had a responsibility to convey a moral message. The artist's most famous painting was titled Arrangement in Grey and Black No. 1 (1871), but it’s more commonly known as “Whistler’s Mother.” It’s a portrait of Anna Matilda McNeill Whistler in a black dress, seated in profile against a gray wall. When Whistler’s scheduled model didn’t show up for a sitting, he decided to paint his mother instead.