Tuhia he tohutoro mō tēnei wāhanga - I te marama o Akuhata 1931, i pā mai a Haina ki ngā ua nui, ā, ka waipuke anō te Awa o Yangtze. Nā tēnei i puta ai tētahi o ngā parekura taiao tino nui rawa atu i roto i te hītori. Ko te tokomaha o te hunga i mate i nga waipuke o Haina i te tau 1931
He uaua ki te whakatau i ngā tatauranga ā-ture mai i te 140,000 ki te 3 miriona tāngata. Ko te whakangaromanga o te waipuke o te tau 1931 i kaha ake i te raruraru hapori i puta i te wa kotahi i te wa e mau ana te iwi i te pakanga a te iwi i taua wa. Ko te tikanga o tēnei ko ngā mana ā-iwi i āwangawanga ki ētahi atu mea matua. Nā reira, kāore ngā mana ā-iwi i tango i ngā tikanga nui hei whakaiti i te rerenga, pēnei i te kohikohi i ngā pūngāwerewere i ngā wāhi e nohoia ana e te awa.