Smoke Signals

During my research on smoke signals I found that this is in fact one of the oldest forms of communication dating back over 5000 years ago, it was typically used to communicate news, danger or to signify a gathering.

At the time it was the quickest way of communicating messages over long distances. Smoke signals are still in use today, in Rome they use smoke to indicate the selection of a new pope, if you see black smoke this indicates that the selection process has been unsuccessful, though if you see white smoke it indicates that a new pope has been elected.