The flag is a very important tool even in the earlier times because similar as it is today, it was used for identification for a certain group or a particular person. For instance in ancient Egypt where its rulers, called Pharaohs, control the land, conveying important messages to his people, he lets his soldiers carry his flag so that the listeners will know that the announcement comes from him and they ought to follow. Thatís one proof that the flag really bears great power.
As it has been useful as a land symbol, flags are of equal importance to the sea. Several flag uses on the waters include identification as to where the ship came from and what they wish to accomplish with their travel. Also it is used as a signal for passing vessels especially when an infectious or diseased crew is on board; or where a ship needs mechanical assistance. In cases like this, other ships may be able to help or extend treatment during medical emergencies. Today, flags on ships, called nautical flags are still used to convey signals. Although with modern communication facilities, sailors no longer need so much attention to make signals through the use of flags (semaphore signaling).
Nautical Flagpoles have proven to be the most effective tool on waters because it can easily be seen from afar. Likewise, in cases where the communication line breaks, sailors can call the attention of passing vessels by simply setting up the appropriate flag. Convenient, isnít it?