The prophet Muhammad linked religion to government as he said that there shall be peace and tranquility in the government. Since Islam preaches peace, he made sure that the government was ruled by peaceful and wise people.
To make laws, the Constitution had people such as a Senate and House of Representatives
This is correct. I always just do bc starts highest to lowest and then AD lower to higher
The rulers of Italy before the Romans were the "Etruscans", although it should be noted that the Etruscan dominance of the region was not even close to the Romans' in terms of power and political nature.