Railroads on the Railways required tracks for the trains to run on them these tracks earlier made up of iron for its heavy duty but soon enough realise that iron was not a very good option for tracks. Meaning drawbacks of using iron for example rusting is it was realised that Steel was a better option in making railroads.
Steel being made out of iron is heavy duty material yet it is not much prone to rusting. Just addition of certain minerals and carbon in iron steel forging is done making it heavy duty material.
Answer:The three other slave trades -- the trans-Saharan, Red Sea, and Indian Ocean slave trades -- are much older and predate the trans-Atlantic slave trade. During the trans-Saharan slave trade, slaves were taken from south of the Saharan desert and shipped to Northern Africa
Explanation:
The Atlantic slave trade. A main cause of the trade was the colonies that European countries were starting to develop. In America, for instance, which was a colony of England, there was a demand for many labourers for the sugar, tobacco and cotton plantations.
Answer:
The Byzantine Empire was the eastern continuation of the Roman Empire after the Western Roman Empire's fall in the fifth century CE. ... Changes: The Byzantine Empire shifted its capital from Rome to Constantinople, changed the official religion to Christianity, and changed the official language from Latin to Greek.
Constantinople sat in the middle of a trade route,sea and land. Its wealth came from trade and its strong military. Constantinople remained secure and prosperous while cities in western Roman empire crumbles.
Explanation:
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