ELI5: Explain Like I'm 5

Jewish skull collection

Okay kiddo, we're going to talk about something called "Jewish skull collection". Now, a long time ago, some people thought that different groups of people had different heads or skulls. They believed that Jewish people had different skulls than other groups of people.

Some of these people wanted to study and collect Jewish skulls to prove their beliefs. This idea is called phrenology. But it's not a nice idea because it's mean to judge people based on the way they look.

Now, we know that this idea is not true and it's not okay to collect people's skulls. It's important to treat everyone with kindness and respect, no matter what they look like or where they come from.