Original sentence: " Eventually, Jim Corrigan enlisted in the military to serve in World War II, and on his departure, the Spectre became "permanently" invisible, becoming a secondary player in his own series.The Spectre's career began in the 1940 (More Fun Comics #52, February 1940), when hard-boiled cop Jim Corrigan was murdered
Edited sentence: "  Eventually, Jim Corrigan enlisted in the military to serve in World War II, and on his departure, the Spectre became "permanently" invisible, becoming a secondary player in his own series.The Spectre's career began in 1940 (More Fun Comics #52, February 1940), when hard-boiled cop Jim Corrigan was murdered