Milecastle 0, Roman fortification in Wallsend, United Kingdom.
Milecastle 0 is a Roman fortification in Wallsend that marked the eastern terminus of Hadrian's Wall. The structure featured a rectangular stone design with thick walls and gates on the northern and southern sides that served as a watchtower for soldiers.
This fortification was built in the 2nd century under Emperor Hadrian and served as the eastern starting point of the Roman border defense system. It was part of a network of small forts positioned at regular intervals along the wall.
The milecastle design reflects Roman military engineering principles with standardized measurements and construction techniques used throughout the frontier system.
The site is located near Segedunum Roman Fort and is accessible via the Hadrian's Wall Path National Trail. Visitors should wear appropriate footwear for uneven ground and be prepared for coastal weather conditions.
The existence of this milecastle is theoretical and unconfirmed, as no physical remains have been found to verify its exact location. Its significance lies mainly in its role as the zero reference point for the entire measuring system of the wall.
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