TELEGRAPH (1830-1840) (1 gen 1830 anni – 1 gen 1840 anni)
Descrizione:
Telegraph is a system of communication in this era. It is a long distance transmission of textual messages where the sender uses symbolic codes to the receiver. It creates signal by making and breaking electrical connections
Aggiunto al nastro di tempo:
Data:
1 gen 1830 anni
1 gen 1840 anni
~ 10 years
Immagini: