Ep. 3 | The Four Great Inventions

Today we look at the Four Great Inventions, the 四大发明, that Lord Francis Bacon hailed as having done more than anything else to transform completely the modern world and mark it off from antiquity and the Middle Ages. The four great inventions were the compass, gunpowder, paper, and printing, each important in their own unique way. Learn more about your ad choices. Visit megaphone.fm/adchoices