What are the different types of religion?

Today in class we went over more about cultural differences. Here are my notes from class:
~In Yugoslavia, many ethnic groups were made into one country. They include groups like Serbs, Croats, Bosnians, and Albanians.
~When strong leadership had died out over time, different groups fought a very bloody civil war, not they all have separated countries.
~In Rwanda and Burundi in Africa, Two ethnic groups were dominate. These two groups are called Hutu and Tutsi.
~The Hutu's are dominate in one and they begun to persecute the Tutsi, and vice versa with the other groups.
~This had led to almost constant war between these two different groups since they did not like each other very much.
~the United States and Switzerland have peacefully merged multiple ethnic groups in countries.
~Korea and Japan mainly only have one ethnic group, making them a lot less diverse then other countries around the world today.
~Religion can be both a unifying and ununifying force among many people.
~the 5 major religions practiced are Christianity, Hinduism, Buddhism, Judaism, and Islam.
~ Religion can make a group of people come closer together whether its someone in your church or if it is a family member you see at something like a funeral.