Historiography of religion is a way of studying and understanding how people throughout history have thought about and practiced religion. It's like looking at all the different stories and ideas people have had about religion, and trying to figure out why they believed what they did and how it influenced their lives.
Imagine you and your friends are playing a game. You all have different rules and ideas about how to play the game, and sometimes you get into fights about what's fair and what's not. When historians look at religion, they're kind of like the grown-ups watching your game – they want to see how different people have played the game throughout history, and why they made the choices they did.
Historians who study the historiography of religion look at lots of different things, like old books, paintings and sculptures, letters and diaries from people who lived long ago, and even buildings and ruins from ancient times. They try to piece together what people believed about religion and how it affected their lives.
For example, some historians might study how people in ancient Egypt worshiped their gods, and how those beliefs influenced their art and architecture. Others might look at how people in Medieval Europe interpreted the Bible, and how that shaped their political and social beliefs. Still others might study how religious beliefs influenced the behavior of people during important historical events, like wars or revolutions.
By studying the historiography of religion, historians hope to better understand how religious beliefs have shaped human societies throughout history. They can learn more about why people believed what they did, what they valued and how that affected their lives. And maybe, by looking at all these different ways people have believed and practiced religion, they can gain a better understanding of the world we live in today.