If Athens prospered under the leadership of Pericles, what went wrong? What was the trigger, or initial cause, of conflict?

a system in which products were made rapidly by machines

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

after the roman empire, the catholic church began to unify by taking on many duties of a government.