Which roman emperor codified laws and built a wall across britain?

Hadrian was the roman emperor codified laws and built a wall across Britain.

Explanation:

The Roman emperor named Hadrian built a wall across Britain which is known as the Hadrian's wall. The wall was constructed to fight for border between "Southern Britain and unconquered north".

It was known for the northern limits of Roman empire, and was constructed on the bank of river Tyne to Solway Firth on Irish sea. It is the largest "archaeological feature" in Britain and one the major tourist attractions too. It was also given the tag on UNESCO world heritage site.

idk

explanation:

“the iliad” (gr: “iliás”) is an epic poem by the ancient greek poet homer, which recounts some of the significant events of the final weeks of the trojan war and the greek siege of the city of troy (which was also known as ilion, ilios or ilium in ancient times).