I have a daughter in Grade 7. She’s 13 and a teenager. They know everything. So she loves it when she manages to teach me something new. That I didn’t know before. That she DID know.
The Nile is the longest River in the world (I knew that).
The Nile empties into the Mediterranean Sea – that’s new to me.
BC means Before Christ (I knew that).
BCE means Before Common Era – that’s new to me.