Okay kiddo, have you heard of the Bible? It's a really important book that a lot of people believe in. Well, there's a part of the Bible called the New Testament and it talks about Jesus and his followers. The Codex Ravianus is an old book that has a copy of the New Testament written in it.
The Codex Ravianus is really special because it is one of the oldest copies of the New Testament that we have today. It was written a long time ago, about 1,500 years ago, by monks who wanted to make sure that future generations could read the Bible too.
The monks who wrote the Codex Ravianus used special inks and parchment paper to make sure that the words would last a really long time. They wrote very carefully and some parts of the book even have pretty pictures in them.
The book got its name because it was found in Ravenna, a city in Italy, in the 16th century. Since then, it has been studied by lots of people who want to learn more about the history of the Bible and the early Christian church.
So, the Codex Ravianus is a really old and important book that has a copy of the New Testament in it. It was carefully written by some monks a long time ago, and has helped us learn a lot about the history of the Bible and religion.