OK, the version I gave DS is roughly as follows:
A long time ago, most people in Europe worshipped God in the same way. They had to say their prayers in Latin, and because they couldn't read, they only knew about the bible through the priests in the churches, they weren't allowed to work things out for themselves. The most important man was the Pope and he lived in Rome. But then, slowly people started to think about think about this. They wanted to be able to say prayers in their own language and to understand what they were saying. They began to say that some things in churches were maybe a bit silly, like actually believing that the bread and wine was really really Jesus's body (it wasn't they said, it was just a symbol). They also began to ask why the Pope was soooo important and to think that perhaps he shouldn't be.
Now, at this time, over in England, Henry VIII had been married to Catherine for 20 years and they only had one child, who was a girl. Henry was miffed about this because he needed a boy who could be king when he died. So he got to wondering why God wasn't being kind and giving them a baby boy. He decided that the marriage had to finish and in those days, to divorce someone, you had to ask the Pope. However, the Pope said no and told Henry not to be so silly. Henry was cross about this. However, he'd started to hear about some people in the rest of Europe who said that the Pope was not the most important person anymore. And he'd also heard that Kings were kings because God said so. Which was handy, because, if that were true, Henry was the most important person in England and in his own country he didn't need to take any notice of the Pope! So, Henry decided to take up the new religion and declare that he was appointed by God to rule in his own country. This meant he could divorce Catherine and go and live with that nice young thing who'd taken a fancy to him...
Sadly for Henry, it turned out that it was probably something up with his own tackle that prevented many pregnancies occuring. And later he decided he quite liked the bread and wine so he brought back that tradition as well.