Writing letters
Writing letters is a way of communication with others. In the ancient period, kings and the main officials used letters to inform or welcome the other regions king. It even helped the people to communicate easily. They are sometimes tied to the legs of a well trained pigeon or an eagle or any kind of a bird. The are even used in some movies like The Mummy, Bahubali and much more. But now not many people use because of the improved technology.