Flight Attendant Became a Hero When She Noticed Something Strange About a Passenger Right After Takeoff

The More You Know

• Dueling is legal in Paraguay, as long as both parties have been registered as blood donors.
• A U.S. park ranger named Roy C. Sullivan held the record for being struck by lightning the most times, having been struck — and surviving — seven times between 1942 and 1977.
• The idea that a man should spend two months salary on an engagement ring was popularized by De Beers' ad agency.
• The speed of a computer mouse is measured in "Mickeys."