; ▁one ▁of ▁these ▁was ▁dated ▁to ▁ 1 4 1 – 1 6 1 ▁AD . ▁ ▁Arch ae ology ▁ ▁Little ▁arch ae ological ▁research ▁has ▁taken ▁place ▁at ▁Wh itle y ▁Castle . ▁In ▁ 1 8 1 0 , ▁the ▁Rev d . ▁John ▁H od g son ▁exc av ated ▁the ▁bath ▁house , ▁in ▁the ▁north - east ▁corner ▁of ▁Ep iac um . ▁In ▁ 1 8 2 5 ▁several ▁le ather ▁sho es ▁were ▁recovered ▁from ▁a ▁Roman ▁rub b ish ▁tip ▁when ▁a ▁Mr ▁Hend erson ▁was ▁cutting ▁a ▁d rain age ▁d itch . ▁The ▁ge ologist ▁Thomas ▁S op with ▁survey ed ▁the ▁fort , ▁describing ▁it , ▁its ▁bath s ▁and ▁the ▁m idden ▁( w aste ▁heap ) ▁in ▁ 1 8 3 3 ▁as ▁follows : ▁ ▁The ▁fort ▁was ▁survey ed ▁by ▁R . G . ▁Col ling wood ▁and ▁described ▁by ▁him ▁in ▁his ▁Arch ae ology ▁of ▁Roman ▁Britain , ▁ 1 9 3 0 , ▁where ▁he ▁noted ▁the ▁fort ' s ▁uniqu ely ▁ske wed ▁shape ▁and ▁extraordinary ▁set ▁of ▁def ensive ▁r amp arts ▁on ▁the ▁western , ▁u ph ill ▁side . ▁Pot tery ▁exc av ated ▁in ▁the ▁ 1 9 5 0 s ▁suggested ▁that ▁the ▁fort ▁was ▁constructed ▁in ▁ 1 2 2 ▁AD , ▁at ▁the ▁same ▁time ▁as ▁Had rian ' s ▁Wall . ▁A ▁survey ▁in ▁ 2 0 0 7 – 8 ▁by ▁English ▁Heritage