Hadrian's wall history

Hadrian couldn't maintain much of its territory. Their soldiers facing the northern part were freezing in winter.
After visiting the front line, Hadrian he knew that he had to tame them.
The wall was 15 feet high and 9 feet down.
3 Legions were needed to make the walls and it took 5 years.
Every 1.5 miles there was a superfort that "homed" 1.000 people

                                                The (not) End!