The weimar republic was unpopular because
a. it was a harsh regime.
b. people felt the constitution was not fair.
c. it did not promote german business well enough.
d. it signed the treaty of versailles which lead to a severe economic downturn in germany.

the constitution of the united states gave congress the absolute authority over immigration laws

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

8 years 100% positive

explanation:

independent innovation during the abbasid caliphate