This is a new type of post, which will be posted on Saturday along with my usual writing. We can all appreciate some of the less known facts from around the world.
According to mathematicians, a standard deck of cards needs to be shuffled seven times to adequately randomize the cards.
The military salute evolved from medieval times, when knights in armor would raise their visors to reveal their identities.
These facts have been discovered in I NEVER KNEW THAT by David Hoffman (2009).