Creationism is a belief or doctrine that explains the origin of the universe and life as the result of a divine being’s purposeful act of creation, rather than through natural processes such as evolution. This viewpoint often stands in contrast to scientific explanations for the origins of life and the universe, particularly the theory of evolution by natural selection. Creationism can take various forms, including young Earth creationism, which interprets religious texts literally and posits that the Earth and life were created over a short period, and old Earth creationism, which accepts an ancient Earth but still affirms divine involvement in creation.