If you are talking about reincarnation, rebirth of the soul into another body after death, then yes, both Hinduism and Buddhism, religions originating out of South Asia, believe in reincarnation. If that's not what you meant then I don't think any religions believe you go back in time. Hope that helps clarify
There will be loads of wars because of the different religions there.
A war zone waiting to happen?
They believe that after our death we will go to heaven or hell. If we will do to heaven then we will not take another birth but if we will go to hell then we will take another birth to improve our mistakes.
Most religions believe in some sort of an afterlife - usually, according to these beliefs, the soul will go to a different kind of world. Some groups also believe that we come back to this world, in another body - perhaps another human, perhaps some animal (this belief is called reincarnation).
Each religion in the world contains elements that adherents of the religion believe truly happened, although followers of other religions might believe they did not happen. Whether or not the events portrayed in a scripture really happened is less important than that the stories built around those events are intended to guide us on a true path.
People would find different reasons to inflict suffering on others.
It is common belief in Christianity that after death one goes to heaven.Other religions such as Buddhism believes in reincarnation, where after this life one is born into another.Then there are those who believe that once you die that is the end.
For a start, different Christian denominations will interpret the Scriptures differently. The basic Christian idea is that there is some kind of afterlife. Some believe that at death, you will go to heaven or hell immediately; others believe that you will be unconscious until the resurrection - which would pressumably happen when Christ returns. Several other religions (like Islam and the Bahá'í Faith) also believe in some afterlife; the idea being (similar to that of some Christian denominations) that the next world will be quite different from this one. Some religions believe in reincarnation - according to these beliefs, instead of going to a different world (like heaven or paradise), your sould would come back to this world, several times - in other bodies. A person who doesn't believe in some kind of god would probably tend to believe there is no afterlife, either.
They go to an afterlife they believe different ones depending on beliefs. Some people also believe nothing happens after death and some believe in rebirth.
A character who makes events happen.
Some do, some don't. I am a pagan, and personally I don't, but I belive that there are forces at work that changes what happens sometimes, but that the choices that WE make are really what makes things happen in our lives.
Just like Christians, Muslims, and followers of several other religions, Bahá'ís believe in a single God, which they simply call "God", if they happen to communicate in the English language.