The Second Industrial Revolution, also known as the Technological Revolution, was a phase of rapid scientific discovery, standardization, mass production, and industrialization from the late 19th century into the early 20th century.
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It was an ancient Greek War fought by the Delian League (led by the Athens) against the Peloponnesian league (led by Sparta). the major cause of it was the Battle of Sybota. this war marked the end of the Golden Age of Greece and the fall of Athens which was once the strongest city-state in Greece. Athens was then absorbed into the Spartan Empire causing the power in Greece to shift dramatically. hope this helped!
It changed by everything going cruel and alarmed.
The Incas built a large system of roads that went throughout their empire, Commoners were not allowed to travel on the roads. Communication was accomplished by runners on the roads.
This would be immigration.