I roto i te 1848, Engels tahi-kaituhi o te Communist Manifesto ki Marx, me te kaituhi, me te tahi-kaituhi (te nuinga ki Marx) maha atu mahi. I muri mai, Engels tautoko Marx pūtea, tuku ia ia ki te mahi rangahau, me te tuhituhi Das Kapital. I muri i te matenga o Marx, Engels whakatika i te rua me te toru rōrahi o Das Kapital. I tua atu, Engels whakaritea Marx o tuhipoka i runga i te ariā o te uara anō, i whakaputaina e ia i muri mai rite te "wha o te rōrahi" o Capital. I roto i te 1884, ka whakaputaina e ia te Takenga o te Family, Private Property me te State i runga i te pūtake o te Marx o ethnographic Pātai: Ko wai te rangahau Capital e mohiotia ki te kua whakatika i rua rōrahi atu o te whai ake Das Kapital?
Ko Engels