/u/nate077 answered "How much of the German population supported Genocide/Naziism?"

/u/cthulhushrugged answering "If Mulan did what she did in ancient China,what would have actually happened to her when they found out she was a female?"

/u/lureynol answered "What is the context for the Major General's song? What is being mocked here?"

/u/drylaw answered "Mexican accordion folk music (norteña) sounds strikingly similar to Eastern European polka - how did this come to be?"

/u/captainpyjamashark answered "Why did the US send troops into Russia during the Russian Civil War? What was their goal?"

/u/kieslowskifan answered "Where there positive portrayal of communists in Cold War era Hollywood movies?"

/u/fragmentedmachine answered "To what extent is Grover Furr's account of the Moscow Trials supported by third party research?"

/u/thehuscarl answered "I've heard that during the siege of Antioch in the First Crusade, the crusaders found a "holy lance" that they believed prefigured their victory. What ever happened to it?"

/u/elphinstone1842 answered "Were there, if at all, ANY piracy going on in the Caribbean between 1730 and 1760?"

/u/mikedash answered "What were 'Sin-Eaters'? And when did the tradition die out?"

/u/pangerandipanagara answering "How Accurate is the Claim that the Rohingya are "Bengali" and not Burmese?"

/u/cazador5 answered "English Parliament, 1265, and related matters."

/u/freedmenspatrol with a 6(!) part answer to How and why did Preston Brooks get away with caning Charles Sumner on the Senate Floor?

Best (and one of the most entertaining) answer I've ever seen on this sub.