I recently discovered a book that I can’t wait to read called Adam’s Ancestors: Race, Religion, and the Politics of Human Origins (author: David Livingstone; Johns Hopkins University Press, 2008). The book is about how, in response to Darwinism, certain 19th and 20th century preachers and biblical scholars came up with the idea that there were races *before* Adam. They justified the idea with some truly bizarre Bible interpretation. Whether theologically conservative Christians and Jews who imbibe such ideas realize it or not, much of this is similar to “root race” theories peddled by occultists like Helena Blavatsky, whose esoteric teachings were one thread in the racial theories of people like Adolf Hitler. (And in case you think these ideas aren’t still around, spend some time on the internet).
Here are two reviews of this important academic work (an antidote to nonsensical Bible interpretation and misguided apologetics):