1 jan 300 ano antes da era comum - Roman Concrete (Rome)
Descrição:
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.Adicionado na linha do tempo:
Data:
1 jan 300 ano antes da era comum
Agora
~ 2327 years ago