I'd probably start here: https://oxfordre.com/politics/display/10.1093/acrefore/9780190228637.001.0001/acrefore-9780190228637-e-898 https://oxfordre.com/politic

I'd probably start here: https://oxfordre.com/politics/display/10.1093/acrefore/9780190228637.001.0001/acrefore-9780190228637-e-898 https://oxfordre.com/politics/display/10.1093/acrefore/97801... Or at the wikipedia page that links to that article: https://en.wikipedia.org/wiki/Secularism https://en.wikipedia.org/wiki/Secularism