it was recognized as such by the U.S. Postal Service", according to Toonopedia. Li'l Abner was one of 20 American comic strips included in the Comic Strip Classics series of USPS commemorative stamps. Al Capp, an inductee into the National Cartoon Museum (formerly the International Museum of Cartoon Art), is one of only 31 artists selected to their Hall of Fame. Capp was also inducted into the Will Eisner Award Hall of Fame in 2004. Sadie Hawkins Day and double whammy are two terms attributed to Al Capp that have entered the English language. Other, less ubiquitous Cappisms include skunk works and Lower Slobbovia. The term shmoo also has entered the lexicon, defining highly technical concepts in no fewer than four separate fields of science, including the variations shmooing (a microbiological term for the "budding" process in yeast reproduction), and shmoo plot (a technical term in the field of electrical engineering). In socioeconomics, a "shmoo" refers to any generic kind of good that reproduces itself, (as opposed to "widgets" which require resources and active production). In the field of particle physics, "shmoo" refers to a high energy survey instrument, as used at the Los Alamos National Laboratory to capture subatomic cosmic ray particles emitted from the Cygnus X-3 constellation. Capp also had a knack for popularizing certain uncommon terms, such as druthers, schmooze, and nogoodnik, neatnik, etc. In his book The American Language, H.L. Mencken credits the postwar mania for adding "-nik" to the ends of adjectives to create nouns as beginning—not with beatnik or Sputnik—but earlier, in the pages of Li'l Abner. Al Capp's life and career are the subjects of a new life-sized mural commemorating the 100th anniversary of his birth. Created by resident artist Jon P. Mooers, the mural was unveiled in downtown Amesbury on May 15, 2010. According to the Boston Globe (as reported on May 18, 2010), the town has renamed its amphitheater in the artist's honor, and is looking to develop an Al Capp Museum. Capp is also the subject of an upcoming WNET-TV American Masters documentary, The Life and Times of Al Capp, produced by his granddaughter, independent filmmaker Caitlin Manning. Since his death in 1979, Al Capp and his work have been the subject of more than 40 books, including three biographies. Underground cartoonist and Li'l Abner expert Denis Kitchen has published, co-published, edited, or otherwise served as consultant on nearly all