I believe the answer is (red guard)
Answer:
4 slave states stay in the union.
The Scientific Revolution changed the perspective of many people in the world. Our universe was no longer the mystery that it once was. Some people were excited by these new discoveries and revelations while others were terrified of what they did not know and what it could do to their role in society.
Voting determines election outcomes, deciding which elected officials will be making the important decisions and establishing the policies that directly and indirectly affect many areas of our lives such as taxes, health care, military operations, legal codes, education and food standards.
This is called the critical period.
The critical period itself is a stage of the development in the life of a human being in which is said that skills are most easily and most readily learned and acquired. This period usually varies for different things like binocular vision and language, but it is said that after the critical period the skills are acquired with much difficulty if they are to be acquired at all.