From Genghis Khan's world-conquering 'tanks' to the invention of eyeglasses, see if you're smart enough to survive the Middle Ages without getting excommunicated.
Which Venetian merchant spent 17 years as an emissary for Kublai Khan before chronicling his adventures in one of history's most influential travelogues?
Marco Polo
Originating in China and spreading to Europe by the 13th century, what revolutionary tool used magnetism to guide sailors when the sun and stars were obscured?
The Magnetic Compass
Work began in 1296 on Florence's famous Santa Maria del Fiore cathedral, better known as the Duomo, in which iconic architectural style?
Gothic
Which 1215 royal charter did King John seal at Runnymede to address baronial grievances and limit his own arbitrary power?
Magna Carta
At Runnymede in 1215, which English king was forced by rebel barons to seal the Magna Carta to limit his arbitrary powers?
King John