 Complete the following phrase:  In 1858, Charles Darwin thinks about publicly releasing his ideas despite knowing that he would receive backlash from the Christian community. Another major concern for Darwin is that British naturalist Alfred Russel Wallace had the same theory of evolution existing through natural selection and upon the arrival of Wallaces letter to him in June 1858, Darwin becomes worried that he will not be able to publish his own similar theory. While Darwin ponders if he should publish his theory, he discusses the matter with his wife Emma for two weeks while also telling her about the events that led to his theory of natural selection. During this time, their youngest son catches scarlet fever and dies shortly after. The events that Darwin discusses with his wife include his expedition on the 