Jet lag was once called boat lag, beck before jets existed.
Jimmy Carter is a speed reader (2000 wpm).
Jimmy Carter was the first US president to have been born in a hospital.
John has a long moustache was the coded signal used by the French Resistance in WWII
John Wilkes Booth shot Lincoln in a theatre and was found in a warehouse. Lee Harvey Oswald shot Kennedy from a warehouse and was found in a theatre.
John Wilkes Booth's brother once saved the life of Abraham Lincoln's son.
Ketchup was sold in the 1830's as medicine.
Killer whales have such a good sense of touch that if you dropped a pill into a bucket and feed it to the orca it would eat the fish and spit out the pill.
King Kong in the only movie to have its sequel (Son of Kong) released the same year (1933)
Kleenex tissues were originally used as filters in gas masks.
Knitted socks discovered in Ancient Egyptian tombs have been dated back as far as the 3rd century AD.
Kotex was first manufactured as bandages, during WWI
Lemon sharks grow a new set of teeth every two weeks! They grow more than 24,000 new teeth every year!
Leonardo Da Vinci could write with one had and draw with the other at the same time.
Leonardo Da Vinci invented scissors, played the viola, and spent twelve years painting the Mona Lisa's lips.
Less than 1% of the Caribbean Islands are inhabited.
Less than 7% of the population donates blood.
Less than 2% of the water on Earth is fresh.
Li is the family name for over 87 million People in China.
Lightning strikes the earth about 6,000 times per minute on this planet.
Liquid paper was invented by Mike Nesmith's (of the Monkees) mother, Bette Nesmith Graham, in 1951.
Lobsters have blue blood.