Mousilin, often a misspelling of Mussolini, refers to Benito Mussolini, the Italian dictator who led the country from 1922 to 1943. He was the founder of Italian Fascism and played a key role in the development of totalitarian regimes in Europe during the early 20th century. Mussolini allied Italy with Nazi Germany during World War II but was eventually overthrown and executed in 1945.