: Darwin feared his theory would devastate his wife, Emma, a devout Christian who believed his ideas might separate them in the afterlife. The Resolution

"Darwin's Darkest Hour" refers to a critical period in 1858 when Charles Darwin faced a profound personal and professional crisis that nearly derailed his life's work. The Core Crisis: The Wallace Letter

This professional threat hit Darwin during a time of intense family suffering:

: His children were battling scarlet fever and diphtheria.