A Complete List of the Richest People Throughout History

The More You Know

• The idea that a man should spend two months salary on an engagement ring was popularized by De Beers' ad agency.
• A pack of chihuahuas once terrorized a town in Arizona.
• A baby can cost new parents 750 hours of sleep.
• Commercial flights were allowed to fly any course to their destination and would often detour over points of interest. This ended in 1956 when two planes crashed mid-flight over the Grand Canyon.