Sociocultural evolution justify new policies such as eugenics. Most 19th-century and some 20th-century approaches aimed to provide models for the evolution of humankind as a single entity. However, most 20th-century approaches, such as multilineal evolution, focused on changes specific to individual societies. Moreover, they rejected directional change (i.e. orthogenetic, teleological or progressive change). Most archaeologists work within the framework of multilineal evolution. Other contemporary approaches to social change include neoevolutionism, sociobiology, dual inheritance theory, modernisation theory and postindustrial theory. In his seminal 1976 book "The Selfish Gene", Richard Dawkins wrote that "there are some examples of cultural evolution in birds and monkeys,
Irreligion in the United Kingdom to prominence in 1976 following the release of "The Selfish Gene", increasingly figured in British irreligion with the release of his 1986 work "The Blind Watchmaker", in which he argued in favour of evolutionary natural selection as opposed to intelligent design and creationism. In the 21st century, New Atheism became a popular topic of debate, support and critique in the United Kingdom. Dawkins' 2006 book "The God Delusion" and Christopher Hitchens' 2007 book "God Is Not Great" were considered emblematic works of the era among British authors, and Dawkins advocated for the Brights movement. The Atheist Bus Campaign was inaugurated