29
/pt/
pt
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
1531247
119958
2
Criar
Public Timelines
Biblioteca
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
9 jan 1887 ano - Railroad Telegrph
Descrição:
Date:1887
inventor: Granville Woods
Purpose: To reduce risk of collisions by allowing trains to communicate
Adicionado na linha do tempo:
4 set 2018
0
0
129
history
Data:
9 jan 1887 ano
Agora
~ 137 years ago
Imagens: