Antoninus Pius was the man who gave his name to the Antonine Wall of 142 AD, which runs between the the Rivers Clyde and Forth, extending Roman Britannia north from Hadrian's Wall. The wall was designed as a frontier for the empire, and a barrier to raiding Caledonian tribes.t was occupied for over 25 years. It is a tribute to the skill of the Roman engineers that the great engineers who built the Forth Clyde Canal or the Edinburgh to Glasgow Railway used the same line across the country. The wall's rampart was 39,726 Roman paces or 36 miles, 620 yards long.