Hadrian's Wall was a wall that ran coast to coast in northern England and built in 122AD. Emperor Hadrian ordered his soldiers to build a wall. But why? He ordered his men to build a wall to separate the Barbarians tribes(in Scotland ) from England, he also built the wall to make sure that only trusted people could come south of the wall. As some of you know I am hiking the total length of Hadrian's Wall right now. The total length of the wall is over 90 miles! If you have any questions comment below and I will answer them!