▁become ▁a ▁contact ▁area ▁for ▁h unter ▁gather ers ▁of ▁the ▁Sw if ter b ant ▁culture , ▁who ▁trad ed ▁with ▁the ▁far mers . ▁ ▁The ▁L B K ▁culture ▁appears ▁to ▁have ▁disappeared ▁from ▁the ▁area ▁around ▁ 4 0 0 0   B CE . ▁Ar ound ▁ 5 0 0 ▁years ▁later , ▁in ▁a ▁second ▁phase ▁of ▁the ▁Ne ol ith ic ▁of ▁the ▁area , ▁the ▁Mich els berg ▁culture ▁appeared ▁in ▁the ▁region . ▁It ▁was ▁a ▁relatively ▁less ▁sed ent ary ▁culture , ▁which ▁once ▁again ▁showed ▁signs ▁of ▁concerns ▁with ▁fort ification . ▁A ▁similar ▁Mich els berg ▁culture ▁appeared ▁in ▁the ▁Rh in eland ▁of ▁Germany , ▁and ▁it ▁also ▁appears ▁to ▁be ▁related ▁to ▁the ▁Ch ass é en ▁culture ▁in ▁northern ▁France . ▁But ▁the ▁Mich els berg ▁in ▁Belg ium ▁had ▁distinct ▁local ▁features . ▁If ▁it ▁developed ▁locally , ▁local ▁hun ters ▁and ▁gather ers ▁may ▁have ▁played ▁a ▁role , ▁but ▁arch ae ological ▁evidence ▁is ▁so ▁far ▁incon clus ive ▁about ▁what ▁happened . ▁This ▁culture ▁was ▁apparently ▁able ▁to ▁spread ▁into ▁the ▁Camp ine , ▁or ▁at ▁least ▁influence ▁it ▁more . ▁During ▁this ▁period , ▁there ▁are ▁stronger ▁signs ▁that ▁the ▁h unter - g ather er ▁Sw if ter b ant ▁cult ures ▁of ▁these ▁areas ▁were ▁becoming ▁involved ▁in ▁pot tery ▁and ▁far ming ▁themselves . ▁ ▁In ▁the ▁third ▁and ▁late ▁fourth ▁mill enn ia ▁B CE , ▁the ▁whole ▁of