What is the protection of an inventor's idea called in the legislative branch called?

The southern colonies practiced indentured servitude and slavery because cash crops such as tobacco and sugar required many workers. the fishing and shipping industries required many workers. imprisoned debtors were brought from africa to settle the colonies. indentured servitude and slavery were not allowed in the caribbean colonies.

Why is it economically necessary for the east germans to build berlin wall

Explain both sides of shays rebellion. include perspectives of the political leaders of the rebellion.