were popular with the Japanese and inspired Japan's own prolific genre of superheroes. The first Japanese superhero movie, Super Giant, was released in 1957. The first Japanese superhero TV show was Moonlight Mask in 1958. Other notable Japanese superheroes include Ultraman, Kamen Rider, and Sailor Moon. Fine art Starting with the Pop Art period and on a continuing basis, since the 1960s the character of Superman has been "appropriated" by multiple visual artists and incorporated into contemporary artwork, most notably by Andy Warhol, Roy Lichtenstein, Mel Ramos, Dulce Pinzon, Mr. Brainwash, Raymond Pettibon, Peter Saul, Giuseppe Veneziano, F. Lennox Campello, and others. Literary analysis Superman has been interpreted and discussed in many forms in the years since his debut, with Umberto Eco noting that "he can be seen as the representative of all his similars". Writing in Time in 1971, Gerald Clarke stated: "Superman's enormous popularity might be looked upon as signaling the beginning of the end for the Horatio Alger myth of the self-made man." Clarke viewed the comics characters as having to continuously update in order to maintain relevance and thus representing the mood of the nation. He regarded Superman's character in the early seventies as a comment on the modern world, which he saw as a place in which "only the man with superpowers can survive and prosper." Andrew Arnold, writing in the early 21st century, has noted Superman's partial role in exploring assimilation, the character's alien status allowing the reader to explore attempts to fit in on a somewhat superficial level. A.C. Grayling, writing in The Spectator, traces Superman's stances through the decades, from his 1930s campaign against crime being relevant to a nation under the influence of Al Capone, through the 1940s and World War II, a period in which Superman helped sell war bonds, and into the 1950s, where Superman explored the new technological threats. Grayling notes the period after the Cold War as being one where "matters become merely personal: the task of pitting his brawn against the brains of Lex Luthor and Brainiac appeared to be independent of bigger questions", and discusses events post 9/11, stating that as a nation "caught between the terrifying George W. Bush and the terrorist Osama bin Laden, America is in earnest need of a Saviour for everything from the minor inconveniences to the major horrors of world catastrophe. And here he is, the down-home clean-cut boy