Whakaotihia te rerenga e whai ake nei: I whakakorehia hoki e te Kaunihera nga tangata na te kino o te hauora, te korenga o te matauranga ranei. He ture o te tau 1882 e aukati ana i te urunga mai o nga "kairangi" me nga kaikawe mate. I muri i te whakatupuranga o te Perehitini a William McKinley
i patua e tētahi anarchist o ngā mātua manene, whakatūria te Congress te Anarchist Exclusion Act i te tau 1903 ki te whakakore i ngā kaituku anarchist e mōhiotia ana. I tāpirihia he whakaritenga mō te mātauranga ki te Ture Heke o te tau 1917.