Science and engineering (1 jan 100 ano – 31 dez 199 ano)
Descrição:
To improve health, Roman doctors studied the works of the Greeks. One great doctor in the empire was Galen, who lived in the AD 100s. He was a Greek surgeon who studied the body. Galen described he values of the heart and noted differences between arteries and veins. For centuries, doctors based their ideas on Galen's teachings.The Romans were great builders. They developed new materials to help their structures last. For example, the Romans made cement by mixing a mineral called lime with volcanic rock and ash. The resulting material dried to be very hard and watertight.Adicionado na linha do tempo:
Data:
1 jan 100 ano
31 dez 199 ano
~ 100 years