What political systems developed in early river valley civilizations?

:) during the cold war, people were afraid of communists, both outside and inside the united states. the red scare and mccarthyism that grew out of these fears were damaging to the american way of life. during the mccarthy years, many of the freedoms guaranteed in the bill of rights were limited. write a paragraph explaining what lessons can be learned from the mccarthy era about what u.s. citizens need to protect in order to preserve the democratic political system and the american way of life.

Was the civil war inevitable? could anything have been done through compromise to stop it, or did it have to happen?

What was the purpose for the georgia colony? to be a cash crop supplier to england to be a buffer between maryland and new jersey to establish a colony for the poor in england