Israsmus Darwin wrote the first book about "Evolution". Enlightenment period ,Granpa of Charles. Who knew that !?
The "Enlightenment" period ,was when the masses were finally freed from the horrific prospect of religion,.which by things such as "witch-hunts" (male and female) ,.and the Spanish Inquisition etc. had inflicted terror onto millions.
A terrible death could result for even a false accusation of "blasphemy" etc.
These were violent times where those vested with power by their wealth or by their organised religion ,would seek to subdue and control the masses by self-delusional theories handed down through recent generations.