Decretum Gratiani
Okay kiddo, so the Decretum Gratiani is a really old book made by a guy named Gratian who lived a loooong time ago.
Now, back in the day when people wanted to learn about religion and how to follow God's rules, they didn't have a lot of books to read - at least not like we do now. So Gratian decided to make a big ol' book that combined a bunch of different writings from important people about how to be a good Christian.
It's like if you took all the rules your parents, teachers, and coaches taught you and put them all together in one book.
The Decretum Gratiani has a lot of rules and laws about how to be a good Christian, and it talks about things like how to become a priest, how to get married, and how to punish people for doing bad things.
Basically, it's a really important book for people who want to learn about how to live a good and holy life, and it's still really popular among religious scholars today.
Now, back in the day when people wanted to learn about religion and how to follow God's rules, they didn't have a lot of books to read - at least not like we do now. So Gratian decided to make a big ol' book that combined a bunch of different writings from important people about how to be a good Christian.
It's like if you took all the rules your parents, teachers, and coaches taught you and put them all together in one book.
The Decretum Gratiani has a lot of rules and laws about how to be a good Christian, and it talks about things like how to become a priest, how to get married, and how to punish people for doing bad things.
Basically, it's a really important book for people who want to learn about how to live a good and holy life, and it's still really popular among religious scholars today.