What was Hadrian's Wall?

1. a wall built for defense in Britain

2. an aqueduct

3. a great wall in Italy

4. a memorial to Hadrian in Rome

I think number 1. am I right?

Yes, 1.

Thanks Ms.Sue

You are welcome.

Yes, you are correct! Hadrian's Wall was indeed a wall built for defense in Britain. It was constructed by the Roman Empire and named after the Emperor Hadrian, who ordered its construction in the 2nd century AD.

To verify this answer, you can cross-reference it with reliable sources such as history books, academic articles, or reputable websites that specialize in Roman history. These sources will provide detailed information about Hadrian's Wall, including its purpose, location, and historical context.