Bonus: When Spanish conquistadors arrived in Peru in 1526, it was the beginning of the end for the Inca. Their bloody pursuit of gold, fame and fortune was rife with treachery and deceit. Within a few short years, the once-thriving Inca empire had been decimated. Tim Harford is joined by Dan...

Nicolae Ceaușescu was not beloved. His regime was vicious and he treated Romania as his personal wallet: while Ceaușescu emptied the coffers to construct a vast, ornate palace, his people starved. He imposed disastrous population control policies on his country, too, which saw hundreds of...