Pierre Teilhard de Chardin's life (1881–1955) falls directly in between the First Vatican Council (1869) and the Second Vatican Council (1965), a time period where increasing global acceptance of evolution was forming a disconnect between modern humanity and the Roman Catholic Church. His time came shortly after Charles Darwin's 1859 book, "On the Origin of Species", a time when the intersection between the claims of scientific theories and the claims of traditional theological teachings became an enormous focus of the Vatican's agenda.