Okay kiddo, let's start with understanding what Persia and Assyria are. They are two ancient empires that existed in what we now call the Middle East. Persia was located in what we know today as Iran, and Assyria used to be in what is now part of Iraq, Syria, and Turkey.
Now, Persian Assyria refers to the time when the Persian Empire controlled Assyria. So, imagine if your friend Jimmy came over to your house and started telling you and your siblings what to do. It's kind of like that, except on a much larger scale.
The Persian Empire was big and powerful, and when they conquered Assyria, they took over the land and controlled the people who lived there. The people of Assyria had to follow Persia's rules, pay taxes, and do what the Persian rulers said.
But, even though the Persian Empire controlled Assyria, the Assyrian people still had their own culture and traditions. They spoke their own language and had their own way of doing things, which they tried to keep even under Persian rule.
Overall, Persian Assyria was a period of time when the Persian Empire was in charge of the land that used to be controlled by the Assyrian Empire. It's an important part of history because it shows how powerful empires can take over other regions, but also how the people who live in those regions can still keep their own identities and cultures.