Evolution of Telegraph 1791 - 2020 | History of Telegraph, Documentary video

In this brief video, we will look at the full history and Evolution of Telegraph, so ensure to watch to the end of this video. First of all. The Telegraph is a device or system that allows the transmission of information by coded signal over distance.

Building on the success of the optical telegraph, Samuel Morse completed a working version of the electrical recording telegraph in 1837.

The history and The Evolution of the Telegraph

1791 - optical telegraph by Claude Chappel.
Optical telegraph of Claude Chappe, invented in the late 18th century. The system was extensively used in France, and European countries controlled by France, during the Napoleonic era

1809 - Crude Telegraph Invented By Samul Soemmering.
In 1809, a crude telegraph was invented in Bavaria by Samuel Soemmering. He used wires with gold tips.

1825 - Electromagnet.
In 1825, British inventor William Sturgeon (1783-1850) revealed an invention that laid the foundations for a large scale evolution in electronic communications: the electromagnet.

1830s - The Cooke and Wheatstone electric telegraph.
This was an early electrical telegraph system dating from the 1830s invented by English inventor William Fothergill Cooke and English scientist Charles Wheatstone.

1837 - Heliograph was invented.
The heliograph is a telegraph system using reflected sunlight for signalling. It was mainly used in areas where the electrical telegraph had not been established and generally uses the same code.

1835 - Samuel Morse Telegraph.
Samuel Morse proved that signals could be transmitted by wire. He used pulses of electricity to deflect an Electromagnet.

1851 - The Telegraph Spreads.
Dispatching trains by telegraph started in 1851, the same year that Western Union began its business. Western Union built its first transcontinental telegraph line in 1861.

1969 - Internet was introduced.
The few remaining telegraph applications were largely taken over by alternatives on the internet towards the end of the 20th century.

2000s - Telex.
The telex network was a customer-to-customer switched network of teleprinters similar to a telephone network, using telegraph-grade connecting circuits for two-way text-based messages.

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