Okay kiddo, so let's talk about family names! A family name is like a special word that tells everyone who you are related to. In some places in the world, there are a lot of different family names.
China is one of those places. In fact, there are so many different family names in China that they made a special list called the Hundred Family Surnames. The list has 500 names on it, but they call it the Hundred Family Surnames because it's a way of saying "a lot of different families."
The people who created this list did it a long time ago, over a thousand years ago! Back then, they didn't have computers or phones or the internet like we do now, so they needed a way to keep track of who belonged to which family. It was important to know because families wanted to stay together and also because people could only marry someone from a different family.
The Hundred Family Surnames list helped everyone remember all the different family names. Even though there are 500 names on the list, some of them are more common than others. Just like how some names are more common in the United States than others.
So remember, a family name is a special word that tells everyone who you are related to, and in China, there are a lot of them on a list called the Hundred Family Surnames!