▁Brit ons ▁who ▁had ▁been ▁conquer ed ▁previously , ▁Agr icola ▁built ▁for ts ▁in ▁their ▁territ ories ▁in ▁ 7 9 . ▁In ▁ 8 0 ▁he ▁march ed ▁to ▁the ▁F irth ▁of ▁T ay , ▁campaign ing ▁against ▁the ▁pe op les ▁there . ▁He ▁did ▁not ▁return ▁until ▁ 8 1 , ▁at ▁which ▁time ▁he ▁cons olid ated ▁his ▁g ains ▁in ▁the ▁lands ▁that ▁he ▁had ▁conquer ed . ▁ ▁The ▁territory ▁of ▁the ▁Sel gov ae ▁was ▁substantial ly ▁plant ed ▁with ▁Roman ▁for ts ▁at ▁this ▁time , ▁at ▁Bro om holm , ▁Bl at ob ul g ium ▁( B ir r ens ), ▁Ward ▁Law , ▁Mil ton , ▁Dr um lan rig , ▁D als w inton , ▁and ▁at ▁Glen lo char ▁on ▁the ▁eastern ▁bank ▁of ▁the ▁River ▁De e , ▁which ▁was ▁perhaps ▁the ▁boundary ▁between ▁the ▁Sel gov ae ▁and ▁the ▁neighbour ing ▁Nov ant ae . ▁This ▁suggests ▁( but ▁does ▁not ▁confirm ) ▁that ▁the ▁Sel gov ae ▁were ▁among ▁the ▁British ▁pe op les ▁who ▁had ▁strongly ▁resist ed ▁Roman ▁occupation . ▁This ▁is ▁in ▁contrast ▁to ▁the ▁neighbour ing ▁Nov ant ae , ▁where ▁there ▁are ▁no ▁signs ▁of ▁Roman ▁occupation ▁save ▁the ▁fort let ▁at ▁Gate house ▁of ▁Fle et , ▁in ▁the ▁sout heast ▁of ▁their ▁territory . ▁ ▁Following ▁the ▁re organisation ▁of ▁northern ▁Roman ▁Britain ▁and ▁the ▁construction ▁of ▁Had rian ' s ▁Wall ▁( c . ▁ 1 2