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Optical Telegraph Tower: Even before mobile phones and modern technology, people used to contact each other. The story of this two hundred years old unique phone still surprises people. At that time, this communication technology created without network and smart system was far ahead of its time and today has become a unique example in history.
This optical telegraph tower located in Sasaram is a reminder of that period. When before electricity and mobile phones, messages were sent through visual signals. This tower has been an important part of the wave communication system of the British era.
According to historians, the technical name of this tower was Semaphore Tower. In this, messages were sent through signal hands or shutter system mounted on top, which were read by binoculars from another tower located far away.
Such towers were built at places like Karvandiya, Babhni hill, Gori village and Ghari in Kaimur hill region of Rohtas district. All towers were installed at a distance of 5 to 20 miles from each other, in line of sight.
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It is said that earlier these optical telegraph towers used to have four floors, but due to time and neglect, now only two or three floors are left in them. Today this structure stands in ruins.
Between 1816 and 1830, the British East India Company built a 700 km long semaphore line from Fort William in Kolkata to Chunar Fort near Banaras. Through this, coded messages were sent every hour.
The semaphore system was much faster than the horsemen. Messages were immediately forwarded from one tower to another through signals, due to which administrative decisions were reached quickly.
The optical telegraph system is considered the ancestor of the electric telegraph. Later, this system was stopped with the arrival of electric telegraph, but this tower of Karvandia in Sasaram still remains a silent witness of that technological revolution.
