were the first carriers of messages.

                    is said to have used pigeons to send out the message of his victory in Gaul. 

The                 used pigeons to communicate the names of the winners at the Olympic Games to other cities.

The Morse Code was introduced by Samuel Morse in the year                   

Marconi shared the 1907 Nobel Prize in Physics with                    

Who among the following painters made all his personal notes in mirror writing ?

What was the nationality of Samuel Morse ?

What did the first stamp depict ?

The value of the first stamp was                 annas. 

The earliest use of cryptography is known to have been in