The Subjects of Louis IX the King of France were branded with a hot iron as a sign of loyalty.
In 1898 Nikola Tesla successfully demonstrated a “ship with a remote control” as a continuation of the research on radio frequency.
Chickens in China annually lay about 160 billion eggs. If we made an omelet out of them, every inhabitant of the Earth would get a piece of omelet with a diameter of one meter.
In one day the heart beats around 100.800 times. It pumps through the blood vessels as much blood as it would take to fill about 170 average bathtubs.
Two Storks hatched a Penguin in Osnabrück, Germany.
In the Middle Ages, patients were tended by nuns, who in between themselves called one another sisters. That name was later used for trained nurses.
