Here is a comprehensive summary of the article on John Wayne, covering his life, career, and lasting legacy:

John Wayne (born Marion Robert Morrison, May 26, 1907 – June 11, 1979) was an American actor nicknamed "Duke" who became a lasting icon of Hollywood's Golden Age, starring in 179 productions from the silent era to the 1970s. After losing a football scholarship to USC, he worked for Fox Film and got his first leading role in The Big Trail (1930), but his true stardom began with John Ford's Stagecoach in 1939. He is celebrated for classic Westerns and war films such as Red River (1948), The Searchers (1956), and True Grit (1969), for which he won the Academy Award for Best Actor. Known for roles in The Quiet Man (1952) and Rio Bravo (1959), he personified the nation's frontier heritage for millions. He made his final public appearance at the 1979 Academy Awards and died of stomach cancer two months later, after which he was posthumously awarded the Presidential Medal of Freedom in 1980, cementing his status as a legendary figure in American cinema.