Invention of bridges and tunnels (30 dic 700 anni a. C. – 30 dic 600 anni a. C.)
Descrizione:
Bridges and tunnels were both extremely useful in helping the Romans get to places without having to travel around or over mountains or around a large body of water.
Aggiunto al nastro di tempo:
Data:
30 dic 700 anni a. C.
30 dic 600 anni a. C.
~ 100 years