Calling all history buffs! “Significant Others” with Liza Powel O’Brien is a scripted history podcast that tells a story you might not know about a person you probably do. Season 2 just launched, and the season premiere explores how Benedict Arnold might never have turned on his country were it not for his wife, Peggy, who influenced his betrayal. And guess who plays Benedict Arnold? This guy! (Andy)Listen to this snippet to whet your appetite, then head on over to “Significant Others” to hear the rest. This season you’ll also learn how Amelia Earhart would neither have found fame nor, possibly, disappeared over the Pacific, had it not been for her husband, George Putnam. Plus: who is really to blame for Friedrich Nietzsche’s connection to Nazism. Listen and subscribe to “Significant Others” wherever you get your podcasts.