I think the answer is ..Baghdad and Moscow.
Invention of corporation contributed to
growth of the economy through pooling of resources and limiting of liability to
the owners. For instance, the Supreme Court ruled that a private corporation is
a natural person under the U.S. Constitution, with the same rights and
protection extended to persons by the Bill of Rights, including the right to
free speech.
The reason why earlier historians consider the medieval periods the "dark ages: is : the era seemed less important than the renaissance and the roman empire
there was no significant societal progress during this age
hope this helps
