Hadrian's Wall, a marvel of ancient Roman engineering, was constructed during the reign of Emperor Hadrian in the early 2nd century AD. This monumental fortification spanned the width of northern Britain, from the banks of the River Tyne in the east to the Solway Firth in the west. Its purpose was to mark the northern boundary of the Roman Empire and to regulate trade and immigration while providing defense against invading forces from the north.
