system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Mormonism.
gpt
Jesus is in the New Testament.

Jesus said he loved everyone, then he went away for a very long time.  Some people wondered why he was gone so long.

Then some other men learned how to make books.  The first book they made was the bible.

Many men started teaching the bible.  So many men, in New York, in fact, that people were very confused about religion.  A boy named Joseph Smith was confused too.

He worked as a treasure finder, by looking through stones dug out of Indian burial mounds.  He claimed that an angel told him where a golden book was hidden, written by indians.

The indians said that Jesus loved them and visited them too in their book.  Joseph placed his magic stone in a hat, and read the words from the golden indian book.  This became the book of Mormon.

The confused people wanted to know that Jesus hadn't forgotten them.  When they heard that Jesus loved indians, they felt better.  Many joined Joseph's church.

Joseph really didn't care about money.  He cared about friends.  He loved being surrounded by people who liked him.

Joseph also liked having girls admire him.  He used his church to help him be around a lot of girls.  He then said that God said it was okay for him to marry all of them.  

This made his wife not very happy.  She was very upset about when she found him with one of the girls long before God told Joseph that he could have many wives.

She was upset about the new wives.  

Then one day, a man who worked with Joseph was told that Joseph wanted to marry his wife.  This man, got angry.  He did not want Joseph to take his wife.  He found a printing press and decided to tell everyone that Joseph was taking people's wives.

Joseph was angry at the man for telling his secrets.  He ordered the press be destroyed.  He could do that because people had elected him as mayor.  The press was destroyed.

The Governor was sad that Joseph had destroyed the press.  He said that Joseph had to go to jail for what he had done wrong.

Joseph went to jail.  Men from a town near by formed a militia, that's like a small army, and marched a long way to kill Joseph.  They did.

The members of the church were confused who should lead them.  Some followed on man, some followed another.  About half of them followed a man named "Brigham Young".

He took them to Utah.  

Now, mormons no longer believe they should have many wives in this life, but that they can have many wives after they die.

They believe that families are important, and that everyone should be a mormon.

They believe when Jesus comes back, he will visit them first in a big meeting in Missouri, where Adam and Eve came out of the Garden of Eden.

They believe that he will come to the doors on a special temple in Salt Lake City.

They believe that they can help people who were not mormon in this life be baptized and become mormon after they are dead.

They are trying to be good people by helping everyone to be Mormons.