1 gen 300 anni a. C. - Roman Concrete (Rome)
Descrizione:
Roman Concrete was considered the best in the world. It was made by mixing lime and volcanic rock to form a mortar. Roman concrete can still be found in the modern world meaning it has lasted aroudn 2000 years.Aggiunto al nastro di tempo:
Data:
1 gen 300 anni a. C.
Adesso
~ 2327 years ago