I would disagree with the point of "evolution of views on individuality" effect on slavery. After fall of Roman Empire slavery was in a serious decline in weste

I would disagree with the point of "evolution of views on individuality" effect on slavery. After fall of Roman Empire slavery was in a serious decline in western kingdoms and after some time in Bysantium and Eastern Europe too. Slavery became a bit more legal in XV century [0], and the peak of slavery (involving Christians) came on XVII century[1], somehow co-existing with those ideas of human rights, freedom, secular state and so on. Again slavery could have been abolished due to economic reasons in XIX century. For example humanism didn't stop Scramble for Africa [2], nor Opium Wars and subsequent colonization of China. [0] https://en.wikipedia.org/wiki/Dum_Diversas https://en.wikipedia.org/wiki/Dum_Diversas [1] https://en.wikipedia.org/wiki/Slavery_in_the_United_States#Slavery_in_British_colonies https://en.wikipedia.org/wiki/Slavery_in_the_United_States#S... [2] https://en.wikipedia.org/wiki/Scramble_for_Africa https://en.wikipedia.org/wiki/Scramble_for_Africa