I’ll speak as an ethnic Igbo who is also a twin. A big reason I have my life is European influence. While I don’t buy the fluff that it was Mary Slessor that ended the killing of twins, after all, the practice had been banned in the Calabar area 38 years before she arrived there, the truth is that her work helped make the practice of infanticide less acceptable. The real truth is that the Obong of Calabar who banned it in the first place lacked the state capacity to implement it, so it was the colonisers who implemented the ban ultimately.