Message in a Bottle

What is a Message in a Bottle?

Imagine youve been stranded on an island as a result of a shipwreck before the time of radio, satellite, and internet. How can you let the outside world know to send help? You write your SOS to the world on paper, shove it into a bottle that has been weighted with a little sand to keep the bottle upright, cork it, and then throw it into the surf and hope for rescue. In 2013, a message bottle was found 100 years after it was sent!