Pomerium

Okay kiddo, have you ever heard of something called Pomerium? No? Well, it’s like a magical barrier that surrounds a special area, and only certain people can go in and out of it.

Think of it like a castle. The castle is surrounded by walls that keep the bad guys out, right? Well, Pomerium is like a wall, too. It keeps out the people who aren't supposed to be there.

In ancient Rome, Pomerium was a special wall that surrounded the city. Only certain people could go inside the area surrounded by the wall. It was like a secret club that only the cool kids could enter. This area was called the "city proper" and it was where important things happened, like elections and public meetings.

But Pomerium wasn't just a physical wall. It was also a set of rules that governed how people could act inside the wall. For example, no armies were allowed inside the Pomerium, so if soldiers wanted to enter the city, they had to leave their swords and armor outside.

So, that's Pomerium in a nutshell, kiddo. It’s like a secret club with walls and rules that only certain people can enter. Pretty cool, huh?