What does a failed 19th-century Chinese civil exam and one of the deadliest wars in history have to do with how we hire, educate, and test people today? In this EconTalk conversation, Russ Roberts and education expert Daisy Christodoulou trace a surprising thread from the Taiping Rebellion through Britain's Northcote-Trevelyan reforms, Samuel Pepys's naval exams, and Macaulay's belief that a…