30 dic 1875 anni - the tel
Descrizione:
On March 7, 1876, 29-year-old Alexander Graham Bell receives a patent for his revolutionary new invention: the telephone. The Scottish-born Bell worked in London with his father, Melville Bell, who developed Visible Speech, a written system used to teach speaking to the deaf.https://www.youtube.com/watch?v=j3RbnsHTuVw
Aggiunto al nastro di tempo:
Data:
30 dic 1875 anni
Adesso
~ 149 years ago