How did the inventions of writing affect the sources on which historians rely

The inventions of writing affect the sources on which historians rely on because writing is a way to communicate with other people. Writing is a new way of communication, and it is also a way of documentation where all that happens in the past will be written in the history.

the answer is migration

legislative branch:

one of the three branches of government divided between the senate and the house of representatives.

- creates or makes laws

- power to override a veto

executive branch:

one of the three branches of government, headed by the president.

- enforces or carries out laws

- power to veto a bill sent to it by congress

judicial branch:

one of the three branches of government, headed by the chief justice of the supreme court.

- interprets laws

- power to declare laws or actions by the government unconstitutional