Proponents of the day-age theory can be found among theistic evolutionists and progressive creationists. The framework interpretation is held by many theistic evolutionists and some progressive creationists. Theistic evolutionists have frequently been prominent in opposing creationism (including intelligent design). This view of the universe was generally termed evolutionism, while its exponents were evolutionists. As an atheist he eagerly promoted the division between some evolutionists and some Christians. However, molecular evolutionists found that rates of protein evolution were fairly independent of generation time. The Origin of Society on evolution, was one of the leading Enlightenment evolutionists. Processual archaeologists are, in almost all cases, cultural evolutionists. These works likely had an influence on 19th-century evolutionists, and possibly Charles Darwin. Before punctuated equilibrium, most evolutionists considered stasis to be rare or unimportant. Evolutionists in general would be too hesitant to recognize this. Evolutionists expected one part to change at a time, one change to follow another.